jQuery keydown() Method
Example
Set the background color of an <input> field when a keyboard key is pressed down:
  
    $("input").keydown(function(){
    $("input").css("background-color", "yellow");
 });
  
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Definition and Usage
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.
Syntax
Trigger the keydown event for the selected elements:
  
    $(selector).keydown()
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Attach a function to the keydown event:
  
    $(selector).keydown(function)
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| Parameter | Description | 
|---|---|
| function | Optional. Specifies the function to run when the keydown event is triggered | 
Try it Yourself - Examples
Determine which key was pressed
How use the event.which property to determine which key was pressed.

