How to find numbers in url using javascript?

Question

JavaScript

There is a page: Razdel1page01.html
How to use javascript to find out what two numbers come before .html?

Answer 1

Regular Expressions

var str = "Razdel1page01.html";
var result = str.match(/([0-9]{2})(\.html)/ );
alert(result[1]);

Answer 2

var str = 'Razdel1page02.html',
    digits = str.match(/\d/g),
    result = digits.slice(digits.length-2);