jQuery / Javascript - How do I convert a pixel value (20px) to a number value (20)

Question

I know jQuery has a helper method for parsing unit strings into numbers. What is the jQuery method to do this?

var a = \"20px\";
var b = 20;
var c = $.parseM         


        

Answer 1

$(document).ready(function(){

    $("#btnW1").click(function(){

        $("#d1").animate({

            width: "+=" + x,

        });
    });

When trying to identify the variable x with a pixel value I by using jquery I put the += in quotes. Instead of having width: '+= x', which doesn't work because it thinks that x is a string rather than a number. Hopefully this helps.