1Best Cheat Sheet:
2https://websitesetup.org/wp-content/uploads/2020/09/Javascript-Cheat-Sheet.pdf

1Finally found out JavaScript Cheatsheet in PDF format :)
2
3Check this 4 JavaScript Cheatsheet in PDF format:
4https://buggyprogrammer.com/cheat-sheet-for-javascript
5

1// before -- [_,_,NEW,REF,_,_]
2list.splice(list.indexOf(REF), 0, NEW))
3

1/* Convenient interactive cheat sheet */ 'https://htmlcheatsheet.com/js/'
2/* PDF VERSION */'https://websitesetup.org/wp-content/uploads/2020/09/Javascript-Cheat-Sheet.pdf'

1.every(n => ...) => Boolean // ie9+
2.some(n => ..) => Boolean   // ie9+
3

1list.push(X)            // list == [_,_,_,_,_,X]
2list.unshift(X)         // list == [X,_,_,_,_,_]
3list.splice(2, 0, X)    // list == [_,_,X,_,_,_]
4