conversion of string to number in JS code example

Example 1: convert a string to number in javascript

var x = Number("1000")

Example 2: convert a string to number in javascript

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])