entry数组_数组entry（）方法以及JavaScript中的示例

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