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Thread Rules
1. This is not a "do my homework for me" thread. If you have specific questions, ask, but don't post an assignment or homework problem and expect an exact solution.
2. No recruiting for your cockamamie projects (you won't replace facebook with 3 dudes you found on the internet and $20)
3. If you can't articulate why a language is bad, don't start slinging shit about it. Just remember that nothing is worse than making CSS IE6 compatible.
4. Use [code] tags to format code blocks. |
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On January 04 2014 20:36 klo8 wrote:Show nested quote +On January 04 2014 08:28 Zocat wrote:
You were free to use the Express versions of Visual Studio. If you require one of the features which isnt available in the Express version it's highly likely that you dont write small projects. So you probably can afford it (or your employer can afford it, a reason why Microsoft gives VS away for free to a lot of students (Dreamspark)).
Also keep in mind that having the whole .NET framework at your disposal for free is quite an advantage.
People here mentioned C++ with Qt. Yeah, either buy a commercial license for Qt or get GPLed. You are not forced into any license when using the many options C# offers (Window Forms, WPF, ...).
On the topic of Visual Studio: Has anyone here have experience with ReSharper? A friend of mine used it at work and he said it was quite decent (though he wouldnt want to to pay for it himself).
Since my favourite Java IDE is IntelliJ, I honestly consider ReSharper for VS, but I'm not really sure about it. Absolutely right. To expand on "getting GPLd", it means that Qt uses the GPL for their open source version. The GPL is a copyleft license, which means that you're only allowed to use the library in your software if you're going to open source it. BSD-style licenses don't have that restriction, they allow you to put open source libraries in your closed source software.
Errr, since Qt 4.5 (a while ago), Qt is available under license LGPL 2.1, which is quite a big deal for companies. Basically, you don't have the GPL plague that follows you (exact words by my boss in a previous company)
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On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript?
Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language.
Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems.
If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding.
Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer.
As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education.
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On January 06 2014 18:28 Abductedonut wrote:Show nested quote +On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education.
I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP?
What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me.
What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this:
![[image loading]](http://assets.omniture.com/en/images/blogs/screen_shot_instance.png)
and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript?
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On January 07 2014 04:33 IronManSC wrote:Show nested quote +On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript?
I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that.
Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};
jQuery is a library used within javascript to simplify working with HTML and CSS among other things.
You can learn javascript first. Though I don't know of any good tutorials unfortunately.
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It would be easier to learn javascript coming from python than coming from css/html, but I don't know if learning python then javascript would be easier than just learning javascript.
Given that you need to learn the basics, it may not be a bad idea to just focus on learning the basics in any language. Then once you understand them and how to use them, you are just a google search away from using them in any language.
As for the code you pasted, everyone is going to have issues understanding code without formatting so I would not worry about that to much. A comparable thing would be to have all your html for a page in one line. Proper code formatting is very important for readability.
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On January 07 2014 04:46 Prillan wrote:Show nested quote +On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately.
I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server).
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On January 07 2014 05:11 Manit0u wrote:Show nested quote +On January 07 2014 04:46 Prillan wrote:On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately. I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server).
Take a look at the source code for Google's web page. It's super compressed, and it's actually hugely important for both transfer time and using less bandwidth. You have to remember - sure a 30% savings might not seem like much for one query, but when you're Google and you're getting millions of queries a day, it adds up.
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On January 07 2014 05:11 Manit0u wrote:Show nested quote +On January 07 2014 04:46 Prillan wrote:On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately. I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server).
I think the idea behind it is you have some uncompressed file that you do your development work on, and then some script will compress it when you deploy so you don't have to worry about editing the compressed file at all.
As for if it is worth it, it really depends on the application. 30% less file size likely won't make much of a difference for some internal web app, but for someone like Google that adds up to a lot of time loading and bandwidth.
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On January 07 2014 05:11 Manit0u wrote:Show nested quote +On January 07 2014 04:46 Prillan wrote:On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately. I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server).
For a hundred requests, a few KB don't matter. For a few million, it adds up. The user himself usually doesn't notice it unless the site very heavily relies on javascript, but admins definitely do. It's not hugely important but it's one of those "well, doesn't hurt, might as well do it" optimization things.
It also serves to obfuscate code to make it harder to steal.
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On January 07 2014 05:26 DeltaX wrote:Show nested quote +On January 07 2014 05:11 Manit0u wrote:On January 07 2014 04:46 Prillan wrote:On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately. I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server). I think the idea behind it is you have some uncompressed file that you do your development work on, and then some script will compress it when you deploy so you don't have to worry about editing the compressed file at all. As for if it is worth it, it really depends on the application. 30% less file size likely won't make much of a difference for some internal web app, but for someone like Google that adds up to a lot of time loading and bandwidth.
Ok, I get it. That's why you also should compress your page in PHP if you're working on a big project, right? With PHP you can treat the entire view as an object and compress it before sending, this should save some bandwidth too (not sure if it'll compress the .js aswell).
Further reading: http://www.php.net/manual/en/function.ob-gzhandler.php
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On January 07 2014 05:32 Manit0u wrote:Show nested quote +On January 07 2014 05:26 DeltaX wrote:On January 07 2014 05:11 Manit0u wrote:On January 07 2014 04:46 Prillan wrote:On January 07 2014 04:33 IronManSC wrote:On January 06 2014 18:28 Abductedonut wrote:On January 06 2014 17:10 IronManSC wrote:
I'm having the hardest time learning Javascript. I'm an absolute beginner at it but I can't seem to "get it." Does anyone have recommendations on learning javascript? Can you be a little bit more elaborate on what exactly you don't understand? Html and CSS are not programming languages. HTML is a markup language. Theoretically, CSS is a programming language since it's Turing Complete (it doesn't matter what this means) but it's not really a general purpose programming language. Programming languages are like C, C++, Java, C#, Python... etc. You may simply be starting out in the wrong place because java script is a very high level language. You've suddenly made this giant leap from "fake" programming to bordering "real" programming. Think of it this way - HTML and CSS is like being in a bath tub. The water is calm, it's cool, and you can do things easily. Jumping into Javascript, you're now suddenly in the middle of the ocean during a storm. And you've never been trained for that. That's why you're running into problems. If you're having problems learning javascript it means that your fundamentals of programming are either non-existent or not very strong. Generally, I'd recommend starting out with any of the languages I listed above (just pick one). Once you sort-of get the grasp on what variables and objects are, you'll be less confused during your javascript coding. Note: If you're going to do web programming you probably want to start out with something like python. If you're planning on being well-rounded developer who wants to be able to easily transition between languages I'd start out with C. This has been debated here billions of times, and the truth is it doesn't matter where you start - once you learn a language learning others will be easy. But C will give you a much better understanding of how the computer works at a fundamental level, which is what you want if you're looking for a rich career as a developer. As for resources - it just depends on what you're into. MIT's OpenCourseware has an amazing intro to computer science class, which teaches you python along with giving you a core CS education. I'm interested in Web design and mabye some back-end programming with it. I'm not interested in gaming, software, or electronics or other things of that nature; just web design. In that case the handful of coding would include HTML5, CSS3, javascript, JQuery (is that the same as JS?), Python, some type of CMS, and mabye Ruby or PHP? What's hard about javascript is that it's programming (I never compared it to html and css...). I do know that many websites like the combination of html/css/js, which is why I want to learn it because I feel I will be on a much better foundation of web building, and would open up more opportunities for me. What's difficult for me, personally, is that in the midst of learning javascript, I'm learning the basics of variables, arrays, and objects, but then I come across coding that reads like this: + Show Spoiler +and I think, how the hell do people learn this kind of thing? Are you suggesting I learn Python before javascript? I understand your confusion. The above is compressed javascript. People have started to write javascript and when done compress it to minimize the file transfer time to the user. You're not supposed to read that. Example: + Show Spoiler +Enter the following code to http://closure-compiler.appspot.com/home and click compile. function test(blabla) {
var test_var = 1 + 2 + 3 + 4 + 5;
test_var = 50*test_var + blabla;
return blabla * test_var;
}You should get something like function test(a){return a*(750+a)};jQuery is a library used within javascript to simplify working with HTML and CSS among other things. You can learn javascript first. Though I don't know of any good tutorials unfortunately. I wonder though, is ~30% filesize reduction that significant? I don't think that your .js file should be big to start with (and later alteration/fixing of compressed code is a bitch, unless you keep the uncompressed copy somewhere on the server). I think the idea behind it is you have some uncompressed file that you do your development work on, and then some script will compress it when you deploy so you don't have to worry about editing the compressed file at all. As for if it is worth it, it really depends on the application. 30% less file size likely won't make much of a difference for some internal web app, but for someone like Google that adds up to a lot of time loading and bandwidth. Ok, I get it. That's why you also should compress your page in PHP if you're working on a big project, right? With PHP you can treat the entire view as an object and compress it before sending, this should save some bandwidth too (not sure if it'll compress the .js aswell). Further reading: http://www.php.net/manual/en/function.ob-gzhandler.php
That's a different type of compression. From what you say, it suggests dynamic compression of view files which will actually slow down your server. Generally you are not bandwidth bound, but bound by the database, and if your database runs on the same server then live compression will just slow down your database and will reduce performance overall.
Generally you never want to be using live compression as it will "freeze the world", compression should be done asynchronously as a low priority process. This means that it can't be used for views, but it can be used for big files like uploads.
Minified or Uglified files are static files that are precompiled during development time. For example I could do all my javascript in coffeescript, but when I push to production these files are compiled and minified. These minified files are then served by the production server instead of the coffee files.
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Read this small paper, Google paper about latency
If 30% smaller code saves you 5-10 ms it's more than worth it, as users leaves your site if feels slow.
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On January 07 2014 04:52 DeltaX wrote:
It would be easier to learn javascript coming from python than coming from css/html, but I don't know if learning python then javascript would be easier than just learning javascript.
Given that you need to learn the basics, it may not be a bad idea to just focus on learning the basics in any language. Then once you understand them and how to use them, you are just a google search away from using them in any language.
As for the code you pasted, everyone is going to have issues understanding code without formatting so I would not worry about that to much. A comparable thing would be to have all your html for a page in one line. Proper code formatting is very important for readability.
One point I'll make in favour of learning Python first is that it has a fucking awesome tutorial for people who've never programmed before in their life. It's how I learned to program by myself as a high school student so I'm maybe biased, but honestly, it runs through things really, REALLY simply, and introduces you to all of the fundamentals of programming in a language that's simple to understand and read.
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In fucking matlab, I want to make a list with numbers 1-30. Obviously I don't want to type it out, so what's the easiest command to make this happen? X = {1;2; ....
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On January 07 2014 18:44 Arnstein wrote:
In fucking matlab, I want to make a list with numbers 1-30. Obviously I don't want to type it out, so what's the easiest command to make this happen? X = {1;2; ....
X=1:30
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On January 07 2014 18:44 Arnstein wrote:
In fucking matlab, I want to make a list with numbers 1-30. Obviously I don't want to type it out, so what's the easiest command to make this happen? X = {1;2; ....
List or matrix? altho I don't think it changes a whole lot for single float entries
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On January 07 2014 20:42 FakePseudo wrote:Show nested quote +On January 07 2014 18:44 Arnstein wrote:
In fucking matlab, I want to make a list with numbers 1-30. Obviously I don't want to type it out, so what's the easiest command to make this happen? X = {1;2; .... List or matrix? altho I don't think it changes a whole lot for single float entries
Perhaps both, maybe neither.
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I was bored, so I just did some random shit in C, but why doesn't it print the sum?
+ Show Spoiler +
#include <stdio.h>
#include <time.h>
int main()
{
int sum = 0;
while ( 1)
{
srand(time(NULL));
sum += rand() % 6 + 1;
printf( "Summen er: \n", sum );
}
}
It shows "Summen er" when I run it, but not the int!
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EPT
