javascript - Manually trigger an event on window object -

i adding listener so:

    window.addeventlistener('native.showkeyboard', function (e) {         ...         ...     });

i'm writing unit test want trigger event. im doing:

    window.trigger('native.showkeyboard');

but end error line saying:

    undefined not function

how can manually trigger event?

edit

i have tried:

  $(window).trigger('native.showkeyboard');

but handler doesnt run it's not registered jquery...

if triggering event via jquery event ought have been attached via jquery -- see @frederichamidi's comment.

$(window).on('native.showkeyboard', function (e) {     ......... });  $(window).trigger('native.showkeyboard');

or if you're using plain vanilla js way:

window.addeventlistener('native.showkeyboard', function (e) {     ........ });  window.dispatchevent( new event('native.showkeyboard') );

My