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JavaScript uses delete to delete array elements. Usage example [array length remains unchanged]

高洛峰
高洛峰Original
2017-01-20 11:08:592110browse

The example in this article describes the use of JavaScript to delete an array. Share it with everyone for your reference, the details are as follows:

After javascript uses delete to delete certain values ​​​​in the array, the length of the array remains unchanged.

The specific code is as follows: 

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>JavaScript delete</title>
</head>
<body>
<script>
var a = [1, 2, 3, 4, 5, 6];
for (var i in a) {
  if (a[i] % 2 == 0) {
    delete a[i];
  }
}
console.log(a);
console.log(a.length);
</script>
</body>
</html>

The running effect diagram is as follows:

JavaScript uses delete to delete array elements. Usage example [array length remains unchanged]

I hope this article will be helpful to everyone in JavaScript programming.

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