jQuery keyup() Method
Example
Set the background color of an <input> field when a keyboard key is released:
  
    $("input").keyup(function(){
    $("input").css("background-color", "pink");
 });
  
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Definition and Usage
The order of events related to the keyup event:
The keyup event occurs when a keyboard key is released.
The keyup() method triggers the keyup event, or attaches a function to run when a keyup event occurs.
Tip: Use the event.which property to return which key was pressed.
Syntax
Trigger the keyup event for the selected elements:
  
    $(selector).keyup()
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Attach a function to the keyup event:
  
    $(selector).keyup(function)
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| Parameter | Description | 
|---|---|
| function | Optional. Specifies the function to run when the keyup event is triggered. | 
Try it Yourself - Examples
Determine which key was pressed
How use the event.which property to determine which key was pressed.

