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JS 参考手册

JS 参考手册(字母排序)

JavaScript

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HTML DOM

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HTML 对象

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

JavaScript new Array 方法


示例

// 创建一个数组
const cars = new Array(["Saab", "Volvo", "BMW"]);
亲自试一试 »

更多示例如下!


描述

new Array()构造函数用于创建一个Array对象。


语法

new Array(iterable)

参数

参数 描述
iterable 必填。
一个包含值的可迭代对象。

返回值

类型 描述
数组 一个新的数组对象。


更多示例

示例

创建一个空数组并添加值:

// 创建一个数组
const cars = new Array();

// 向集合中添加值
cars.push("Saab");
cars.push("Volvo");
cars.push("BMW");
亲自试一试 »

示例

不使用 new Array() 方法创建数组:

// 创建一个数组
const cars = ["Saab", "Volvo", "BMW"];
亲自试一试 »

浏览器支持

new Array() 是 ECMAScript 1(JavaScript 1997)的特性。

所有浏览器均支持:

Chrome Edge Firefox Safari Opera

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