php - Javascript数组元素计数

Question

我有一个 javascript 数组

var array=["83487","83488","83489","83490","83491"];

我想得到这个数组的计数我怎样才能得到这里的计数是 5。

Answer 1

array.length;

或者

array["length"];

Answer 2

您可以使用该length属性：

var array=["83487","83488","83489","83490","83491"];
alert(array.length);

Answer 3

 <script>
 function myFunction()
 {
  var sample = ["83487","83488","83489","83490","83491"];
  alert(sample.length);
 }
 </script>

样本

Answer 4

使用数组长度；它将返回数组中的元素数