parse out numbers with js code example

Example 1: string to int javascript

var text = '3.14someRandomStuff';
var pointNum = parseFloat(text);
// returns 3.14

Example 2: 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