Set the background color of an <input> field when a keyboard key is pressed down:
The order of events related to the keydown event:
The keydown event occurs when a keyboard key is pressed down.
The keydown() method triggers the keydown event, or attaches a function to run when a keydown event occurs.
Tip: Use the event.which property to return which keyboard key was pressed.
Trigger the keydown event for the selected elements:
Attach a function to the keydown event:
|function||Optional. Specifies the function to run when the keydown event is triggered|
Determine which key was pressed
How use the event.which property to determine which key was pressed.