Question

Can someone help me figuring out why the following jQuery code doesn’t work?
I want to return a integer from a user input.

var test = parseInt($("#testid"));

Answer 1

var test = parseInt($("#testid").val(), 10);

You have to tell it you want the value of the input you are targeting.

And also, always provide the second argument (radix) to parseInt. It tries to be too clever and autodetect it if not provided and can lead to unexpected results.

Providing 10 assumes you are wanting a base 10 number.