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CommonJS's specification of how modules should work is widely used today for server-side JavaScript with Node.js. [1] It is also used for browser-side JavaScript, but that code must be packaged with a transpiler since browsers don't support CommonJS. [1]
The key to understanding design patterns such as IIFE is to realize that prior to ES6, JavaScript only featured function scope (thus lacking block scope), passing values by reference inside closures. [9] This is no longer the case, as the ES6 version of JavaScript implements block scoping using the new let and const keywords. [10]
Reference objects: Reference objects are created for each reference currently on the page, and whenever a reference is added by the script. Reference objects have several attributes: refname – The 'name' attribute of the ref tag; refgroup – The 'group' attribute of the ref tag; content – The content inside of the ref tags
var x1 = 0; // A global variable, because it is not in any function let x2 = 0; // Also global, this time because it is not in any block function f {var z = 'foxes', r = 'birds'; // 2 local variables m = 'fish'; // global, because it wasn't declared anywhere before function child {var r = 'monkeys'; // This variable is local and does not affect the "birds" r of the parent function. z ...
Verse supports lambda expressions and anonymous functions, allowing for inline function definitions, similar to how lambda functions are used in languages like Python or JavaScript. Verse also allows for composing functions by chaining method calls and passing functions as parameters.
MediaWiki:Gadgets-definition — this defines the module "ext.gadget.refToolbar" (loaded for everybody), responsible by loading the appropriated components of the RefToolbar, such as the module "ext.gadget.refToolbarBase" MediaWiki:Gadget-refToolbar.js — this is the main script that generates the editing window and is where RefToolbar gets ...
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