Sagir Khan sagirk

Carefully do the official [tutorial][].
Read the official guide to [main concepts][].
Read the official [advanced guides][].
Watch [building React from scratch][] to get an idea of how React actually works (this covers the "stack" reconciler which was used in React 15 and earlier).
Go through the [React "fiber" architecture][] which is the default reconciler since React 16.
Go crazy, build your own projects, and stop doing React tutorials!

	// librarySystem with dependencies

	(function () {
	var libraryStorage = {};

	function librarySystem(libraryName, dependencies, callback) {
	// If librarySystem is called in 'create' mode, store the library.
	if (arguments.length === 3) {

	// If the library has dependencies, fetch the dependencies first and then store the library.

	/**
	* Match for patterns: `function (...) {...}` and `(...) => {...}`
	* (`...` could be zero or more words, digits, spaces, underscores, commas)
	*/
	/function\s\(([\w\d\s_,])\)\s\{([^}])\}\|\(([\w\d\s_,])\)\s=>\s\{([^}])\}/gi

	/**
	* Match for patterns: `function (...)` and `(...) =>`
	* (`...` could be zero or more words, digits, spaces, underscores, commas)
	*/

	// Credits: Kent C. Dodds https://github.com/kentcdodds
	// Ref: https://github.com/kentcdodds/ama/issues/406#issuecomment-391764106
	// Tip: load up the below script in a Quokka buffer to have the list just waiting in your clipboard

	const {execSync, spawn} = require('child_process')

	const result = execSync('code --list-extensions')

	const list = String(result)
	.split('\n')

	/**
	* Second Implementation
	*
	* 1. The function `bind(a, b)` will return the calling function with the first
	* argument as context for, and the rest of the arguments as arguments to the
	* returned function.
	*
	* 2. In addition to the bind call, the `valueOf` property on every function
	* type is the function that is called whenever the JS runtime needs to typecast
	* that function to a primitive type. The type of variable actually being

	const utilities = {
	/**
	* Manually parse a time string back to a Date object.
	* Read the following to understand why Date.parse() cannot be relied upon:
	* https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/parse
	* https://stackoverflow.com/a/20463521
	*
	* @param {string} time - The time to be parsed in the ISO 8601 format.
	* @returns {Date}
	*/

	function runWithDebugger(callback, args) {
	debugger;
	callback.apply(null, args);
	}

	/**
	* A function that emits a side effect and returns a promise.
	*/
	type Procedure = (...args: any[]) => Promise<void>;

	/**
	* `debounceAsync` debounces promise-returning & async functions.
	* Adapted from Sindre's p-debounce.
	* Ref: https://github.com/sindresorhus/p-debounce
	*

	/**
	* querySelectorAll with regex support.
	* Adapted from: https://stackoverflow.com/a/62144522.
	*
	* Note: In the `attributeToSearch` parameter's absence, all attributes on all
	* DOM nodes will be searched. This can get quite expensive for large DOM trees.
	*
	* Usage example:
	* `querySelectorAllRegex(/someregex/, 'target-specific-attribute-if-needed');`
	*