javascript converte string em número
var myInt = parseInt("10.256"); //10
var myFloat = parseFloat("10.256"); //10.256
Grepper
var myInt = parseInt("10.256"); //10
var myFloat = parseFloat("10.256"); //10.256var x = parseInt("1000", 10); // you want to use radix 10
// so you get a decimal number even with a leading 0 and an old browser ([IE8, Firefox 20, Chrome 22 and older][1])var n = Number(str);