JAVASCRIPT

javascript cheatsheet

Finally found out JavaScript Cheatsheet in PDF format :)

Check this 4 JavaScript Cheatsheet in PDF format:
https://buggyprogrammer.com/cheat-sheet-for-javascript

javascript cheatsheet

//get cheatsheet of other languages too
https://github.com/LeCoupa/awesome-cheatsheets/blob/master/languages/javascript.js
https://github.com/mbeaudru/modern-js-cheatsheet

javascript cheatsheet

document.getElementById("elementID").innerHTML = "Hello World!";

Javascript array cheatsheet

// Javascript Array Methods

[3, 4, 5, 6].at(1); // 4
[3, 4, 5, 6].pop(); // [3, 4, 5]
[3, 4, 5, 6].push(7); // [3, 4, 5, 6, 7]
[3, 4, 5, 6].fill(1); // [1, 1, 1, 1]
[3, 4, 5, 6].join("-"); // 3-4-5-6
[3, 4, 5, 6].shift(); // [4, 5, 6]
[3, 4, 5, 6].reverse(); // [6, 5, 4, 3]
[3, 4, 5, 6].unshift(1); // [1, 3, 4, 5, 6]
[3, 4, 5, 6].includes(5); // true
[3, 4, 5, 6].map((num) => num + 6); // [9, 10, 11, 12]
[3, 4, 5, 6].find((num) => num > 4); // 5
[3, 4, 5, 6].filter((num) => num > 4); // [5, 6]
[3, 4, 5, 6].every((num) => num > 5); // false
[3, 4, 5, 6].findeIndex((num) => num > 4); // 2
[3, 4, 5, 6].reduce((acc, num) => acc + num, 0); // 18

javascript array methods cheat sheet

// example
[ "x", "y", "z" ].join(" - ") // "x - y - z"
// syntax
arr.join([separator])