How can I get the length of text entered in a textbox using jQuery?

Question

How can I get the length of text entered in a textbox using jQuery?

Answer 1

var myLength = $("#myTextbox").val().length;

Answer 2

If your textbox has an id attribute of "mytextbox", then you can get the length like this:

var myLength = $("#mytextbox").val().length;

• $("#mytextbox") finds the textbox by its id.
• .val() gets the value of the input element entered by the user, which is a string.
• .length gets the number of characters in the string.

Answer 3

You need to only grab the element with an appropriate jQuery selector and then the .val() method to get the string contained in the input textbox and then call the .length on that string.

You can grab the length of all the input textboxes on the page with the follow selector:

$('input:text').val().length

This will return an array of the lengths of the various inputs. You can also change the selector to get a more specific element but keep the :text to ensure it's an input textbox.

On another note, to get the length of a string contained in another, non-input element, you can use the .text() function to get the string and then use .length on that string to find its length.