jQuery or JavaScript equivalent of PHP strpos function to find string on a page

Question

Is there an equivalent function in JavaScript or jQuery similar to strpos in PHP?

I want to locate a string inside an element on a page. The string I\'m

Answer 1

You don't need jquery for this -- plain old Javascript will do just fine, using the .indexof() method.

However if you really want an exact syntax match for PHP's strpos(), something like this would do it:

function strpos (haystack, needle, offset) {
  var i = (haystack+'').indexOf(needle, (offset || 0));
  return i === -1 ? false : i;
}

Note: This function taken from here: http://phpjs.org/functions/strpos:545

JSFiddle