CODEWITHSUNDEEP
javascript
Sir
Sir

Reputation: 8280

EventListener for focus change?

Is there a way to add an event listener to an input where by the focus changes from onfocus to something like off focus

Basically i have an event listener assigned to my input box using key up, this then calls my server to check if the username is taken already in the database.

The problem is - this will call every time the user presses a letter, i would rather wait until they are no longer focussed in the input box to check the database, so i can reduce the amount of calls?

What would the best option be for event listening to do this ? As it seems silly to check when user is still typing in the box.

I currently have:

mydiv.addEventListener("keyup",name_exist_validation(),false);

Upvotes: 1

Views: 5149

Answers (3)

user405398
user405398

Reputation: 

mydiv.addEventListener("blur",name_exist_validation,false);

Upvotes: 0

Thomas
Thomas

Reputation: 516

Other sites eg Wordpress use a timer aswell as the Blur event as sdespont said.

Upvotes: 0

sdespont
sdespont

Reputation: 14025

Event name Blur : https://developer.mozilla.org/en-US/docs/Web/Reference/Events/blur

<element onblur="SomeJavaScriptCode">

Upvotes: 6

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