Questions tagged [javascript]

JavaScript (not to be confused with Java) is a high-level, dynamic, multi-paradigm, weakly-typed language used for both client-side and server-side scripting. Use this tag for questions regarding common implementations of ECMAScript, JavaScript, JScript, etc. JS does not typically refer to its ECMA-cousin, ActionScript.

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3answers
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Is break a code smell?

I'm asking in terms of a loop, obviously break is important in switch statements. Whether or not switch statements themselves are code smells is a separate issue. So consider the following use cases ...
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Is server validation necessary with client-side validators?

I recently created a .net web app that used over 200 custom validators on one page. I wrote code for both ClientValidationFunction and OnServerValidate which results in a ton of repetitive code. My ...
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2answers
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Respectable design pattern for making node modules flexible/testable?

I am looking to get some input from some more experienced testers than what I am. :) I am trying to make my node modules testable, allowing for dependency spying/stubbing/mocking without the need to ...
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2answers
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How to have a maintainable and manageable Javascript code base [closed]

I am starting a new job soon as a frontend developer. The App I would be working on is 100% Javascript on the client side. all the server returns is an index page that loads all the Javascript files ...
5
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2answers
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Should I still make my site work in non-javascript capable browsers?

Apparently less than 1% had javascript off in 2010: http://developer.yahoo.com/blogs/ydn/posts/2010/10/how-many-users-have-javascript-disabled/ So is it worth it to still support browsing without ...
5
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3answers
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Why make JavaScript class based?

JavaScript is a prototype language. To turn it into a class based language adds little value? I am not talking about best-practice here. I remember reading an article from way back, which claimed that ...
5
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2answers
19k views

In ASP.NET MVC/Razor, how to add initializer JavaScript to a “control”?

Actually, I already have at least 3 different solutions for the problem, I just don't like any of them for various reasons. In ASP.NET MVC/Razor, there are no controls anymore, in the sense as they ...
3
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2answers
3k views

What is the best practice for method parameter validation in a library? [closed]

I develop a game library in javascript, containing many classes. I hesitate on the behavior that I should follow concerning method parameter validation: Should I check the validity of parameters ...
3
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3answers
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How to handle large scale js+jquery projects using well written, Object-Oriented JavaScript and jQuery code? [closed]

I love the whole user experience/interface thing and put a lot of jQuery and JavaScript (pure JavaScript for HTML5 stuff, like canvas, file API, etc). The problem I face now is that my codes are ...
2
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2answers
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one single compressed js file VS compressed requirejs module files

I just started using requirejs and I love it. I have one concern though. I've been compressing all my js files into one single file. Even with requirejs optimizer, I need to load module files from the ...
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1answer
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Functional programming, and pushing item to array [closed]

I'm studying functional programming and I'm having some question concerning array population. Actually, I'm trying to rebuild the Array.prototype.map function, and here's what I've got: Array....
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3answers
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How is type checked in a dynamic language interpreter/compiler, such as JavaScript?

In dynamic languages, such as JavaScript or Python, the type of a variable is determined at runtime. This is one reason why they are slower than typed languages such as Java. How is type checking ...
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3answers
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Should I nest functions in languages that allow me to do that or should I rather avoid it?

In JavaScript, PL/SQL and some other languages, functions can be nested, i.e. declared within another function. This could be used to break a large function into smaller pieces, but keep those pieces ...
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2answers
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Should I group all of my .js files into one large bundle?

One of the difficulties I'm running into with my current project is that the previous developer spaghetti'd the javascript code in lots of different files. We have modal dialogs that are reused in ...
6
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1answer
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mysql, one connection vs multiple

On nodejs with node-mysql, should I create one connection for the service like this: var client = mysql.createClient({ user: 'user', password: 'pass' }); // Create a new mysql Client io....
6
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4answers
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What is the name for a NON-self-calling function?

I have a collection of normal functions and self-calling functions within a javascript file. In my comments i want to say something along the lines of "This script can contain both self-calling and ...
4
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1answer
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Is there an easy way to map directory structure to a MongoDB schema?

I'm trying to store a directory structure, including files and their content, in MongoDB. The work is part of a synching app, and is using in Node/Mongoose. Now, I'm new to Mongo, and it's late here ...
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6answers
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“As” Naming Convention [closed]

I'm experimenting with a naming convention I've devised and am seeking opinion. It involves the use of an "As" infix, and at this point I am envisioning it in the context of JavaScript, C# and C++ ...
2
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1answer
328 views

Javascript Closure Style Similar to Java Class Structure

PROBLEM: There is a coding imperative (S. McConnel, Code Complete) that one shouldn't code on language, but by means of it, e.g. doing right style things even if language doesn't have some ...
2
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1answer
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JS Async: . Can I forget callbacks all together and replace with promises and/or generators [duplicate]

I've been using Nodejs and I really dislike callbacks (as i think most people do.) I'm starting to learn about promises and generators. Both are a lot cleaner and I'd like to forget the horrors of ...
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4answers
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Overwriting and returning the value of the argument used as conditional of an if statement, inside the same if statement

A simplified example: function logTheColor (color){ if(color == "red"){ color = "The color is red " } else if (color == "yellow") { color = "The color is yellow " } else { ...
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1answer
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Combine jquery/jqueryui/qtip/custom javascript into one minified file

I'm using jQuery, jQueryUi and qTip in my web application alongside custom JavaScript I've written. All three of the JavaScript libraries I mentioned above are licensed under the MIT license. From ...
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2answers
956 views

JavaScript…what to unit test [duplicate]

I would like to hear other people's opinion on what to unit test in JavaScript. I've been thinking about it and experimenting and let me present what seems to me the right thing. First of all, in ...
1
vote
2answers
857 views

JavaScript codes complexity and maintainability [closed]

I am trying to make my way back to JavaScript (been there last time some 7 years ago) with the help of lovely "Eloquent JavaScript" book. While I admire author's capabilities and approach, I have ...
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2answers
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embedding programming languages into other languages [duplicate]

In C/C++, there is a keyword that allows you to enter assembly language directly into a method. Example int Main() { __asm // notify the compiler that this block is assembly language. { ...
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4answers
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HTML - Alternative for ID when ID is only unique within a certain scope?

So I feel like this should be a common question but I can't find the answer. Maybe I'm using the wrong terminology. Assumptions: IDs are supposed to be unique across the document. Class attributes ...
0
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3answers
879 views

When/Where to create/assign event handlers to its elements

Lets say I have the following code // JS $(function(){ $('[data-mc=logout]').click(function(){ if (!confirm(myconfig.msg['asklogout'])) { return false; ...
0
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3answers
582 views

Code pattern to have the least possible code complexity (Javascript)

I've been looking for the ideal coding patterns used to score well in a Cyclomatic Complexity. Of course, code will be subject to change according to what is being developed but regardless the ...
0
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1answer
818 views

Front-end or Back-end Implementation of API? [closed]

Lets say I want to implement an API from an external website, for example like Dribbble or Last.fm. I'm fairly new to this new generation of front-end MVC's (angular, etc), and most example's I've ...