LANGUAGE » JAVASCRIPT

Syntax

Last updated:
Reference:developer.mozilla.org

Basic ​

Built-in functions ​

js
typeof myVar;  // 'string', 'number', 'boolean', 'object', 'undefined'
isNaN(myVar);

Type conversion ​

js
const num = parseInt('10');
const dec = parseFloat('3.1416');
const bool = Boolean(0);  // !!0 - true for empty lists and objects!