entry数组
JavaScript entry()方法 (JavaScript entries() method)
entries() method is used to create an iterator object of an array to access the keys (index) and values.
entry()方法用于创建数组的迭代器对象，以访问键(索引)和值。
Syntax:
句法：
array.entries();
Parameters: None
参数：无
Return value: An iterator object of the array.
返回值：数组的迭代器对象。
Note: To print the key, value using iterator, we use iterator.next().value.
注意：要使用迭代器打印键值，我们使用iterator.next()。value 。
Example:
例：
Input:
var names = ["Manju", "Amit", "Abhi", "Radib", "Prem"];
Function call:
var it = names.entries();
it.next().value;
Output:
0,Manju
JavaScript Code to demonstrate example of Array.entries() method
JavaScript代码演示Array.entries()方法的示例
<html>
<head>
<title>JavaScipt Example</title>
</head>
<body>
<script>
var names = ["Manju", "Amit", "Abhi", "Radib", "Prem"];
//creating an iterator
var it = names.entries();
//printing keys(index) & values
document.write(it.next().value + "<br>");
document.write(it.next().value + "<br>");
document.write(it.next().value + "<br>");
document.write(it.next().value + "<br>");
document.write(it.next().value + "<br>");
</script>
</body>
</html>
Output
输出量
0,Manju
1,Amit
2,Abhi
3,Radib
4,Prem
翻译自: https://www.includehelp.com/code-snippets/array-entries-method-with-example-in-javascript.aspx
entry数组