I was writing a calculator program.
I want the program to catch "keyEvent" when I just press the key to the view directly.
How can I use the KeyEvent without input element?
This is my code.(with element).
<input type="text" ng-keydown="keyCheck($event)"/>
To use the Key Event without element, I tried to put the "ng-keydown " directive to body element. like this:
<body ng-keydown="keyCheck($event)">
However, Nothing has happened.
What do I have to do to use the keyEvent directly in screen?
What I want is that :
When I just put the key "7" without click to anywhere, my calculator sense it. That's what I want.