How to clear a textbox using javascript

Question

I have a

I need a javascript method to clear the value of the textbox when the focus is

Answer 1

For those coming across this nowadays, this is what the placeholder attribute was made to do. No JS necessary:

<input type="text" placeholder="A new value">

Answer 2

use sth like

<input type="text" name="yourName" placeholder="A new value" />

Answer 3

Your HTML code,

jquery code,

$("#textboxID").val('');