Question

I have an array of characters like :

var invalid_chars = ['<', '>', '$', '@', '&', '+', '(', ')', '[', ']', '{', '}',' ','`'];

and have a string like :

var id_val = $("#id_number").val(); //text field contains "mu 1$2@345"

So I want to restrict the invalid_chars to be entered in the filed.

For that I have the following code:

var id_val = $("#id_number").val();
var invalid_chars = ['<', '>', '$', '@', '&', '+', '(', ')', '[', ']', '{', '}',' ','`'];
if (in_array(invalid_chars,id_val)) {
  console.info("HI");
}

But it shows me error.”ReferenceError: in_array is not defined”

Please help me out.
Thanks in advance.

Answer 1

in_array() is a PHP method. In JavaScript use indexOf().