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CSSStyleDeclaration JS 类型转换


JavaScript 数组 join() 方法


实例

将数组元素转换为字符串:

var fruits = ["Banana", "Orange", "Apple", "Mango"];
var energy = fruits.join();
亲自试一试 »

页面下方有更多实例。


定义和用法

join() 方法将数组作为字符串返回。

元素将由指定的分隔符分隔。默认分隔符是逗号 (,)。

注释:join() 方法不会改变原始数组。


浏览器支持

表中的数字表示支持该方法的第一个浏览器版本。

方法
join() 1.0 5.5 1.0 Yes Yes

语法

array.join(separator)

参数值

参数 描述
separator 可选。要使用的分隔符。如果省略,元素用逗号分隔。


技术细节

返回值: 字符串值,表示数组值,由指定的分隔符分隔。
JavaScript 版本: ECMAScript 1

更多实例

实例

尝试使用不同的分隔符:

var fruits = ["Banana", "Orange", "Apple", "Mango"];
var energy = fruits.join(" and ");
亲自试一试 »

相关页面

JavaScript 教程: JavaScript 数组

JavaScript 教程: JavaScript 数组方法