[javascript] Run JavaScript when an element loses focus

I have a standard HTML input that I want to run JavaScript code when it loses focus. Sadly my Google searches did not reveal how to do this.

To make it clear, I'm looking for a way to do this:

<input type="text" name="name" value="value" onlosefocus="alert(1);"/>

You want to use the onblur event.

<input type="text" name="name" value="value" onblur="alert(1);"/>

From w3schools.com: Made compatible with Firefox Sept, 2016

<input type="text" onfocusout="myFunction()">

You're looking for the onblur event. Look here, for more details.

onblur is the opposite of onfocus.