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JS 参考手册

JS 参考手册(字母排序)

JavaScript

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<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 RegExp [0-9] 表达式


实例

对字符串中的数字1、2、3和4进行全局搜索:

var str = "123456789";
var patt1 = /[1-4]/g;
亲自试一试 »

定义和用法

[0-9] 表达式用于查找括号之间的任何字符。

括号内的数字可以是0到9之间的任何数字或数字范围。

提示: 使用 [^0-9] 表达式查找任何非数字字符。


浏览器支持

表达式
[0-9] Yes Yes Yes Yes Yes

语法

new RegExp("[0-9]")

或者简写:

/[0-9]/

带修饰语的语法

new RegExp("[0-9]", "g")

或者简写:

/\[0-9]/g

更多实例

实例

对字符串中的数字 "1" 进行全局搜索:

var str = "12121212";
var patt1 = /[1]/g;
亲自试一试 »

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