shiftKey Event Properties
Event objects Definition and Usage
shiftKey Events property returns a Boolean value that indicates when an event occurs, "SHIFT" key is pressed and hold.
grammar
event.shiftKey=true|false|1|0
Examples
Examples
The following example prompts when the mouse button is clicked "SHIFT" key is held down:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<script>
function isKeyPressed(event){
if (event.shiftKey==1){
alert(" shift 键被按下!");
}
else{
alert(" shift 键没被按下!");
}
}
</script>
</head>
<body onmousedown="isKeyPressed(event)">
<p>点击该段落，弹窗会提示是否按下 shift 键。</p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.com)</title>
<script>
function isKeyPressed(event){
if (event.shiftKey==1){
alert(" shift 键被按下!");
}
else{
alert(" shift 键没被按下!");
}
}
</script>
</head>
<body onmousedown="isKeyPressed(event)">
<p>点击该段落，弹窗会提示是否按下 shift 键。</p>
</body>
</html>
try it"
Event objects