Trim spaces from start and end of string

Question

I am trying to find a way to trim spaces from the start and end of the title string. I was using this, but it doesn\'t seem to be working:

title = title.repl         


        

Answer 1

Here is my current code, the 2nd line works if I comment the 3rd line, but don't work if I leave it how it is.

var page_title = $(this).val().replace(/[^a-zA-Z0-9\s]/g, '');
page_title = page_title.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
page_title = page_title.replace(/([\s]+)/g, '-');