jQuery: Check if character is in string.

Question

Hi, I want the simplest way to check if an underscore (_) is in a variable using jQuery and do something if is not..

if ( '_ is not in var') {
   // Do
}

Thanks!

Answer 1

var str = "i am a string with _";
if (str.indexOf('_') == -1) {
   // will not be triggered because str has _..
}

and as spender said below on comment, jQuery is not a requirement.. indexOf is a native javascript