Примеры для jQuery event.which

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Log which key was depressed.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>event.which demo</title>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<input id="whichkey" value="type something">
<div id="log"></div>
 
<script>
$( "#whichkey" ).on( "keydown", function( event ) {
  $( "#log" ).html( event.type + ": " +  event.which );
});
</script>
 
</body>
</html>

Демонстрация:

Log which mouse button was depressed.

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>event.which demo</title>
  <script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
 
<input id="whichkey" value="click here">
<div id="log"></div>
 
<script>
$( "#whichkey" ).on( "mousedown", function( event ) {
  $( "#log" ).html( event.type + ": " +  event.which );
});
</script>
 
</body>
</html>

Демонстрация: