JavaScript regex to replace a character ignoring HTML tags

Question

Once again, I need some help and I appreciate you all for being here willing to help.
I\'m trying to implement a regex for a JavaScript function that will replace a string o

Answer 1

This will work as long as the amounts are always formatted like $36.<sup>07</sup>.

function getAmount (s) { 
  var r = /\$([^<]+)<sup>(\d+)/.exec(s); 
  return r[1]+r[2]; 
}

getAmount("$36.<sup>07</sup>");
// returns "36.07"

Answer 2

You can solve this easily with jQuery:

jQuery.trim( jQuery('label').text() )

That will strip the tags for you, and produce $36.07 which you can then test with a much simpler regex.

(If you're not currently using jQuery, and don't want to use it, you can still take a look at the source code for it and see how they've implement the .text() function in order to emulate it.)

Hmmm, Re-reading your question, you might be asking something else - to retrieve all labels containing $ (and ignore the inputs) you can do:

jQuery('label:contains($)')

or

jQuery('label').each( checkForDollars );

function checkForDollars()
{
    if ( jQuery(this).text().matches(/\$\d{2,5}/) } )
    {
        // do something
    }
)