How to extract number from a string in javascript

Question

I have an element in javascript like follows:

 280ms

I want to extract 280 from the span element. How can I do it?

Answer 1

Will it always end in "ms"? You can do:

var num = s.substring(0, s.length-2) 

where s is the string in the span. To get this value, you can use text(), html(), or innerHTML on the span.