Answers for "converter string to number javascript"

how to convert string to int js

let string = "1";
let num = parseInt(string);
//num will equal 1 as a int

string to number javascript

new Number(valeur);
var a = new Number('123'); // a === 123 donnera false
var b = Number('123'); // b === 123 donnera true
a instanceof Number; // donnera true
b instanceof Number; // donnera false