Set value of hidden field in a form using jQuery's ".val()" doesn't work

:text will fail for a input with a type value of hidden. It's also much more efficient to just use:

$("#texens").val("tinkumaster");

ID attributes should be unique on a web page, make sure yours are as this may contribute to any problems you're having, and specifying a more complicated selector just slows things down and doesn't look as neat.

Example at http://jsbin.com/elovo/edit, using your example code at http://jsbin.com/elovo/2/edit

If you're having trouble setting the value of a hidden field because you're passing an ID to it, this is the solution:

Instead of $("#hidden_field_id").val(id) just do $("input[id=hidden_field_id]").val(id). Not sure what the difference is, but it works.

Finally, I have found a solution and it's a simple one:

document.getElementById("texens").value = "tinkumaster";

Works like a charm. No clue why jQuery does not fall back to this.