get number from string using jquery

1var id_of_div = "div_id_12";
2var id_number = parseInt(id_of_div.replace(/[^0-9.]/g, ""));
3console.log(id_number);//12

1You can get it like this:
2
3var suffix = 'comment_like_123456'.match(/\d+/); // 123456
4
5With respect to button:
6
7$('.comment_like').click(function(){
8  var suffix = this.id.match(/\d+/); // 123456
9});
10
11It works for me.