JavaScript is the original and common name applied towards most flavors of a scripting language that originated on NetScape Navigator. Use this tag for questions regarding common implementations of ECMAScript, JavaScript, JScript, etc. JS does not typically refer to its ECMA-cousin, ActionScript.

learn more… | top users | synonyms (1)

1
vote
0answers
114 views

Distributed vs Centralised configuration

We're building an app based on Flux/React - and we're trying to establish a scalable pattern for configuring routes and registering dependencies. The two approaches we have can be broadly categorised ...
0
votes
3answers
169 views

Approach to develop an inline editor for enumerated lists

Background Looking to develop a WYSIWYG editor for ordered lists so that people can directly edit lists of instructions on a web page. Problem The contentEditable attribute is woefully immature for ...
-4
votes
1answer
69 views

Languages for gaming website [closed]

So I'm a 15 year old trying to teach myself how to code because I'm deeply interested in it. I would like to one day be able to have my own games website, with little games I'd write. I have a little ...
1
vote
2answers
221 views

How-To: a browser based, real time, shared memory inspection/debugger application [closed]

Background: I have a C application running under Linux utilizing shared memory. I also have a debugger written in Python that can link to said shared memory and access individual variable values of ...
4
votes
2answers
336 views

Practices for organizing JavaScript AMD imports

Our company has been using newer versions of the Dojo framework, which have progressed to an AMD-based loader format. I'm currently trying to find logical ways to separate layer files, taking a module ...
16
votes
1answer
6k views

Is vanilla JS still considered a library?

I very recently found out that VanillaJS (document?) is a library that's just bundled with 99% browsers and isn't exactly native JavaScript (shock of my life). While writing a lib of my own I normally ...
5
votes
6answers
3k views

I made an HTML5/Javascript game. Do I have to license it?

So I created an HTML5/Javascript online game. I host it on my website for anyone to play for free. I am still currently working on it. Do I need to license my game? And if so, what license do you ...
1
vote
3answers
139 views

negative boolean expressions and eager boolean OR

I come across these kinds of expressions and I have hard time reading it. How do you read it properly to see if it is the right logic when debugging. if (!(userLoggedIn || isAdmin)) { ...
2
votes
1answer
298 views

How best to implement HTML5 support for my validation library

I have created an annotation-based validation library called regula. There seems to be some amount of interest around the framework and the next thing I'd like to do is to support HTML5 validation. ...
1
vote
2answers
264 views

Web Application: Combining View Layer Between PHP and Javascript-AJAX

I'm developing web application using PHP with CodeIgniter MVC framework with a huge real time client-side functionality needs. This is my first time to build large scale of client-side app. So I ...
1
vote
1answer
388 views

How to respond with error message when making AJAX calls

I have an app that wasn't written by myself. If there is an error such as an invalid ID given as a parameter, I would return something like: (200 code) { "success": 0, "error": "The row ...
5
votes
2answers
482 views

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 ...
1
vote
0answers
90 views

How to avoid module dependency chain nightmare caused by transitive dependencies?

Many (most?) AngularJS folks seem to advocate for breaking AngularJS apps up into many modules. Brian Ford in his blog already states that packaging by layer (controller, service, etc.) is a "silly" ...
-1
votes
1answer
93 views

Do you spend your effort to reuse obsolete unit tests or rewrite them entirely? [closed]

I have this javascript project which has a unit test suite(about 200unit tests) that covers about 11.31% of the code that it was testing. The project has evolved greatly but the unit tests where never ...
2
votes
3answers
539 views

Sharing business logic between server-side and client-side of web application?

Quick question concerning shared code/logic in back and front ends of a web application. I have a web application (Rails + heavy JS) that parses metadata from HTML pages fetched via a user supplied ...
2
votes
4answers
156 views

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 { ...
46
votes
6answers
37k views

Advantages of using pure JavaScript over JQuery

What are the advantages of using Javascript-only versus using JQuery-only? I have limited experience with JavaScript and JQuery coding. I've added bits and snippets of each to HTML pages but I've ...
0
votes
1answer
178 views

Website with a lot of sound [closed]

I am building a website with a large amount of sounds that should be played upon clicking elements. (It is a language learning website, and many words and phrases will be clickable, to hear ...
27
votes
2answers
21k views

Mixing Angular and ASP.NET MVC/Web api?

I come from using ASP.NET MVC/Web API and now I am starting to use Angular but I am not clear on the proper way to mix them. Once I am using Angular does the MVC server side concepts still provide ...
0
votes
1answer
192 views

Create fake HTTP server to simulate an API for testing

I'm looking to mock responses from an external API service that returns JSON during live events. The first response would contain (fake) events that have happened up to time X, the second response ...
4
votes
1answer
499 views

How dangerous is it to take shortcuts when coding Web based applications? [closed]

I started working as a Web developer few months back. Previously, I had no prior professional experience in programming besides school classes and fun-side projects I did on my own. I am the only ...
25
votes
14answers
8k views

What benefits are there to native JavaScript development? [closed]

Given how much simpler jQuery development is, when compared to native JavaScript, what makes people forgo libraries like jQuery altogether? Is this because jQuery has limitations or it is slow? I ...
0
votes
0answers
84 views

Mutual Authentication in JSON or AJAX only?

AFAIK we must install the client-certificate into the users browser to connect with https-sites using server-certificates to have a mutual authentication. What about AJAX and JSON, can we connect to ...
0
votes
3answers
580 views

How to approach multiple page form with just one save option

The screen shot shows the magento product upload page. The left nav allows you to switch to different options for the product. Basically each option in the left nav appears as a different page. ...
7
votes
3answers
5k views

Backbone/JQuery, ExtJs 4… is there something else worth looking?

Im currently evaluating a front-end architecture for a big app that will be developed by a team of about 6 developers + 1 web designer so that said, having a robust SVN friendly architecture is a ...
0
votes
2answers
508 views

Is JavaScript safe? [closed]

My company has been developing a site for a very large company. The site is now live, and it has received its fair share of hits. The site relies enough on JavaScript to make far less aesthetically ...
0
votes
2answers
98 views

What is the normative (best) use of Javascript arguments object [closed]

JS offers the 'arguments' object inside of functions to represent all passed arguments. Is there any broadly accepted concept for when/where this should be used? I've seen items like this in the ...
-1
votes
1answer
209 views

Is class with callbacks a code smell in JavaScript? [closed]

When writing JavaScript (especially in node.js), I tend to use plain functions and callbacks. However, sometimes there's some context to share between some functions and I don't like to pass this ...
0
votes
3answers
609 views

Is $.proxy a code smell?

I've been writing most of my javascript applications in an OO style close to what I would use for most other languages. However, this means that most callbacks need to have a reference to an object, ...
13
votes
5answers
1k views

Genetic programming [closed]

I recently was browsing Reddit and came across a post linking to a "JavaScript genetic algorithm" example. I've really been fascinated with the concepts of genetic algorithms and programming, however ...
0
votes
1answer
183 views

Ajax call or js to update a cart price

I am building a cart in Java and would like to give users the ability to update the quantity and see the new price instantly. I am using BigDecimal on the back-end for complete accuracy, but the ajax ...
10
votes
3answers
8k views

Building web apps in server-side vs client-side vs hybrid? [closed]

There are currently multiple approaches for building web applications: 1. Server-side only This is a classical approach where you render pages on the server by a web framework like Ruby on Rails, ...
0
votes
2answers
189 views

What are the tecnhical reasons for email HTML, CSS, Javascript limitations and their persistance [closed]

If you've ever made a custom email you'll know that there are significant limitations in you need to be aware of. The most obvious limitations being: No support for Javascript in emails No support ...
2
votes
3answers
914 views

Falsey values vs null, undefned, or empty string

I've worked with jQuery over the years. However, recently, I've found myself getting deeper into the JavaScript language. Recently, I've heard about "truthy" and falsey values. However, I don't fully ...
6
votes
2answers
624 views

Dealing with browser cache in single-page apps

I'm trying to figure out how to properly handle the web browser cache for single page apps. I have a fairly typical design: several HTML, JS and CSS files implementing the SPA, and a bunch of JSON ...
0
votes
1answer
121 views

Declaring many times: script type=“text/javascript”

Trying to clear my HTML code, is it correct if in my web page I declare many blocks of <script> . Like this: <script type="text/javascript"> ... ... </script> <script ...
0
votes
0answers
79 views

Using Singletons in JS with workers

I'm building a javascript application that does continuous drawing, but relies on asynchronous scripts in the background which also need to poll for events and write to "global variables". This got me ...
0
votes
0answers
43 views

Scale parts of image to fill bezier path with no wastage

I want to be able to take an image and stretch/contract each pixel row (or 5 rows for performance) to fit within a curved shape. I've been searching for this for the last few days and have turned up ...
12
votes
7answers
2k views

What constitutes “Proper use” of the javascript Eval feature?

Eval is a notoriously controversial language feature. Douglas Crockford flat out rejects it. I'm wondering what specific risks Eval brings about. According to this question, Improper use of eval ...
0
votes
1answer
92 views

How to lock/unlock a button based on tweeting

I have a button that will be disabled until you send out a tweet that I have crafted. Only users with twitter accounts will have access to this, and I will require users to sign-in to be able to ...
1
vote
0answers
130 views

How can I put multiple hierarchical forms in a single web page and avoid making it a mess?

We are a group of developers working on a web application that accepts forms filled and sent by our users and present it in an overall view. Our main form view looks like this: There are multiple ...
0
votes
2answers
143 views

In Node.js, are non-blocking constructs usually preferable to blocking ones?

Is the following a statement of best practices in Node.js with regard to web applications? If not, how could it be improved? The statement The lifecycle of any web app has at least two phases: a ...
8
votes
5answers
3k views

When a task can be accomplished by either Javascript or CSS, is it better to use CSS? [closed]

I always veto JavaScript by using CSS as much as possible. i.e. I create tabs and rollover buttons using CSS rather than JavaScript. I have seen some solutions—specifically the Wt ...
1
vote
3answers
343 views

From a technical point of view, could JavaScript be compiled instead of interpreted?

The question title speaks for itself. I'm specifically thinking in terms of a Node.js server. Additionally, this question is assuming that you don't need eval(). Also, if this is not possible, why ...
2
votes
1answer
268 views

What is the “best practice” for converting an external API's data structure?

When an API's data structure does not fit well with an angular app, I am trying to determine the best-practice in my specific design and implementation for converting it to a usable structure. I was ...
-1
votes
1answer
97 views

Finding “spare time” in a day from within a list of events

I have a list of events which is always sorted chronologically. The start time is always followed by the end time. Times are strings formatted as 'HHmmss'. // list of events var events = [ ...
0
votes
1answer
264 views

Cheerp — C++ for web: advance or regression? [closed]

Recently I've run into Cheerp, a C++ to Javascript compiler, which uses a modified version of clang to generate Javascript code from C++ sources. That makes me wonder: why in the seven kingdoms would ...
0
votes
4answers
327 views

Is client side JavaScript capable of replicating the Node.JS module loading system?

I like the Node.JS style of JavaScript, where I can write all of my functionalities into smaller files and then require those neatly from within my code. I'm even thinking about trying to write a ...
0
votes
2answers
257 views

Confused about javascript module pattern implementation

I have a class written on a project I'm working on that I've been told is using the module pattern, but it's doing things a little differently than the examples I've seen. It basically takes this ...
0
votes
2answers
207 views

Changing CSS classes when different strings are displayed in a text element with jQuery [closed]

I'm just wondering if this method would be possible using jQuery HTML and PHP. Basically I have a filtering system were products are listed, some have different attribute values such as Hatchback for ...