数组tostring方法_数组toString（）方法以及JavaScript中的示例

数组tostring方法

JavaScript toString()方法 (JavaScript toString() method)

toString() method is used to convert an array to the string. It is called with the array name and returns the string containing array elements with comma separated.

toString()方法用于将数组转换为字符串。使用数组名称调用它，并返回包含以逗号分隔的数组元素的字符串。

Syntax:

句法：

    array.toString();

Parameters: None

参数：无

Return value: A string containing array elements

返回值：包含数组元素的字符串

Example:

例：

    Input:
var arr = [10, 20, 30, 40, 50];
Function call:
var str = arr.toString();    
Output:
str = "10,20,30,40,50"

JavaScript code to convert array’s elements to the string using Array.toString() method

JavaScript代码使用Array.toString()方法将数组的元素转换为字符串

<html>
<head>
<title>JavaScipt Example</title>
</head>
<body>
<script>
var arr1 = ["Manju", "Amit", "Abhi", "Radib"];
var arr2 = [10, 20, 30, 40, 50];
var arr3 = [-10, -20, 0, 10, 20];
var str1 = arr1.toString();
var str2 = arr2.toString();
var str3 = arr3.toString();
document.write("str1: " + str1 + "<br>");
document.write("str2: " + str2 + "<br>");
document.write("str3: " + str3 + "<br>");
document.write("printing the types of the objects...<br>");
document.write("type of arr1: " + typeof(arr1) + "<br>");
document.write("type of arr2: " + typeof(arr2) + "<br>");
document.write("type of arr3: " + typeof(arr3) + "<br>");
document.write("type of str1: " + typeof(str1) + "<br>");
document.write("type of str2: " + typeof(str2) + "<br>");
document.write("type of str3: " + typeof(str3) + "<br>");
</script>
</body>
</html>

Output

输出量

str1: Manju,Amit,Abhi,Radib
str2: 10,20,30,40,50
str3: -10,-20,0,10,20
printing the types of the objects...
type of arr1: object
type of arr2: object
type of arr3: object
type of str1: string
type of str2: string
type of str3: string