In computer programming, the scope of an identifier is the part of a computer program where the identifier, a name that refers to some entity in the program, can be used to find the referred entity.

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Caching DOM-queries

I've been optimizing my code and I always tend to cache common selectors like this (jQ): ...
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393 views

Nested loop to render tiles in a grid

This code works but I'm not really sure if I wrote it good enough. It seems a bit vague but I can't really assess it properly. I'm particularly concerned with the ...
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164 views

Shopping cart application in Spring MVC

I am creating a shopping cart application to learn Spring MVC. I want to display a list of all categories and subcategories in more than one page. i.e; Home Page, Products page, Category page. In the ...
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88 views

Expose only desired functions to 3rd party plugins in JavaScript

I tried to build a solution to dynamically load JS code, but to only expose predefined functions. Is this the correct approach? Is there any Method to execute arbitrary code if I put all my code ...
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4answers
337 views

Summing up distinct elements in steps

My current task is to find a score from an array where the highest/lowest scores have been taken away, and if the highest/lowest occur more than once (ONLY if they occur more than once), one of them ...
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1k views

Handling signals in Python inside a function

I have code that needs to exit gracefully. To simplify things, I am presenting an example based on the answer given here. Since I need to handle a few signals, I thought of putting this logic in a ...
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104 views

Communicating between plugins whilst maintaining context in Javascript

I'm making some changes to a JavaScript plugin on a site I've been made steward over. This main plugin has it's own sub-plugins and I'm trying to make certain aspects modular. Currently, I'm ...
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143 views

Conway's Game of Life - Conventional JavaScript?

I'm using the Game of Life Kata to help me learn JavaScript. I've picked up the syntax through Codecademy tutorials, but my current skill level is Novice. The example code has working functionality ...
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143 views

Advice needed for scopes in JavaScript

I would like to connect this "JS" to Bugzilla (example: bugzilla.mozilla.org or landfill.bugzilla.org). I started to learn JS language today and I would like to ask you: How can I not do bad ...
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Order and visibility tracking algorithm (e.g. scope visibility)

I have a tree of objects. ...
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168 views

Is this JavaScript/jQuery methodology good?

I am seeking critique on what has become my normal methodology of writing JavaScript code. I have become heavily reliant on the jQuery library, but I think this has helped me learn the native language ...
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844 views

Accessing a global list

I'm sort of at a loss for what to do with webapps and whether what I'm doing is actually allowed or not. Here is a sample of the type of thing I'm doing at the moment. I need a list that is accessible ...
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2answers
456 views

iOS/Objective-C “if” best practice

I've got this code that I found in a project and I'm wondering how can it be done better: ...
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414 views

Using a dependency container to load a parent/child class

In PHP, I have a parent/child class and am using dependency container to load them. I am trying to use the same database connection on all of them without duplicating the object. I used ...
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Is declaring a property as `public` insecure?

I posted a question few weeks back, on making a PHP Login Script. Most of you guys told me not to use global variables and especially for something like MySQLi ...
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Better way to avoid trapping vars in a closure's scope?

I have a quandary with regard to exactly how the JavaScript scope chain works in a particular situation, and despite my searching and reading I am still mainly working on assumptions. I was wondering ...