Trigger an UP or DOWN ARROW key event through javascript

Question

There is some event listener in Thunderbird which resolves the emails address from my LDAP server when i press the UP or DOWN ARROW key. so i want to trigger that the same event through Javascript without having to physically press the up or down arrow key. How can i do this?

Do you have code that attempts to do this, but doesn't work how you expect it to? — Shawn Bush, Feb 05 '15 at 15:41
no i do not have code .. i wanted to know i can i simulate the up and down arrow key through javascript.. — Rishab Gupta, Feb 05 '15 at 15:56

score 7 · Accepted Answer · edited May 23 '17 at 12:17

7

I believe this is what you want (using JQuery)

var e = jQuery.Event("keyup");

// e.which is used to set the keycode
e.which = 38; // it is up
e.which = 40; // it is down
$("id_to_element").trigger(e);

If JQuery is not allowed to use, pure javascript solution is more verbose. See this answer

Note: There maybe a bug in Chrome which will hamper this. I would recommend JQuery for less headache.

edited May 23 '17 at 12:17

Community

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answered Feb 05 '15 at 15:45

a_pradhan

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Thanks Akash for the help this is exactly what i want but for javascript not for jquery. If you can please provide me some info in how can i do it through javascript. – Rishab Gupta Feb 05 '15 at 15:54
Updated answer. Follow the link. – a_pradhan Feb 05 '15 at 15:58

Trigger an UP or DOWN ARROW key event through javascript

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