clear an array using javascript
<html>
<head>
<title>clear an array using javascript</title>
</head>
<body style="background:lightgray">
<p>Click the button to test:</p>
<button onclick="test()">clear array</button>
</br>
<textarea id="edit" style="height:200px;width:240px">
</textarea>
<script>
var arr=[1,2,3];
function test() {
clearArray(arr);
document.getElementById("edit").value=arr;
}
function clearArray(arr) {
arr.length=0;
}
document.getElementById("edit").value=arr;
</script>
</body>
</html>
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