javascript type casting int

var myInt = parseInt("10.256"); //10
var myFloat = parseFloat("10.256"); //10.256

var text = '42px';
var integer = parseInt(text, 10);
// returns 42

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

var 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])

Number("3.14") // returns 3.14
false.toString()   // returns "false"
String(false)      // returns "false"

console.log(hex.toString(16));