Jquery filter list without case sensitive

Question

I want to filter the list without case sensitive. I want to match only character not match upper case or lower case.

1. XXXXXXX
2. yyyyyyy
3. XXxxx

Answer 1

Just Add jQuery.expr[":"].contains = function (a, i, m) { return (a.textContent || a.innerText || "").toUpperCase().indexOf(m[3].toUpperCase())>=0;};