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# SYNTAX:
var pattern = new RegExp(pattern, attributes); # attributes: g (global); i (case-sensitive); m (multiline matches)
var pattern = /pattern/attributes; # same as above
# BRACKETS:
[...]: Any one character between the brackets.
[^...]: Any one character not between the brackets.
# NPM CheatSheet.
# Super easy intall: npm comes with node now.
# To create your own npm package: https://www.npmjs.org/doc/misc/npm-developers.html
# More: https://www.npmjs.org/doc/
# 1. NPM Command Lines.
# Local mode is the default.
# Use --global or -g on any command to operate in global mode instead.
// Date Object CheatSheet
// The Date object is used to work with dates and times.
// More: http://www.w3schools.com/jsref/jsref_obj_date.asp
// 1. Instantiating a Date.
var date = new Date();
var date = new Date(milliseconds);
@LeCoupa
LeCoupa / bash-cheatsheet.sh
Last active June 30, 2024 04:50
Bash CheatSheet for UNIX Systems --> UPDATED VERSION --> https://github.com/LeCoupa/awesome-cheatsheets
#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
#
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04
@lalkmim
lalkmim / codility_solutions.txt
Last active April 25, 2024 21:47
Codility Solutions in JavaScript
Lesson 1 - Iterations
- BinaryGap - https://codility.com/demo/results/trainingU2FQPQ-7Y4/
Lesson 2 - Arrays
- OddOccurrencesInArray - https://codility.com/demo/results/trainingFN5RVT-XQ4/
- CyclicRotation - https://codility.com/demo/results/trainingSH2W5R-RP5/
Lesson 3 - Time Complexity
- FrogJmp - https://codility.com/demo/results/training6KKWUD-BXJ/
- PermMissingElem - https://codility.com/demo/results/training58W4YJ-VHA/
@ctodmia
ctodmia / stringify.js
Last active November 18, 2022 15:30
Reimplementation of JSON.stringify
//The following code is a reimplementation of the native Javascript method JSON.stringify
//keep reading for the though process that lead to the solution
var stringify = function(obj) {
//checks if the input obj is a function statement or undefined
if(typeof obj === 'undefined' || typeof obj === 'function') {
return undefined;
}
//checks if the input obj is a string
if(typeof obj === 'string') {
@ljharb
ljharb / array_iteration_thoughts.md
Last active May 22, 2024 09:22
Array iteration methods summarized

Array Iteration

https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff

While attempting to explain JavaScript's reduce method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.

Intro

JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu

@gaearon
gaearon / index.html
Last active February 13, 2024 09:46
Multiple React components on a single HTML page
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<title>Add React in One Minute</title>
</head>
<body>
<h2>Add React in One Minute</h2>
<p>This page demonstrates using React with no build tooling.</p>
@zedeus
zedeus / following.py
Created September 2, 2019 21:06
Fetch Twitter following list
import requests, re, sys
url = "https://mobile.twitter.com/{}/following"
cursor = ""
usernames = []
first = True
if len(sys.argv) < 2:
print("Usage: python followers.py <username>")
quit(1)
@anuraghazra
anuraghazra / minimal-templating-engine.ts
Last active October 28, 2023 09:07
Minimal Templating Engine In Javascript
// magic!
function dom<Props extends Record<string, unknown>>(
str: TemplateStringsArray,
...args: string[] | ((props: Props) => string)[]
) {
const interleaved = args.flatMap((arg, index) => {
return [arg, str[index + 1]];
});
return (props?: Props) =>