JS 参考手册

JS 参考手册(类别排序) JS 参考手册(字母排序)

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen DOM Style
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex
DOM Window

Web APIs

API Console API Geolocation API History API Storage

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> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

其他参考手册

CSSStyleDeclaration JS 类型转换


JavaScript RegExp [abc] 表达式


实例

对字符串中的字符 "h" 进行全局搜索:

var str = "Is this all there is?";
var patt1 = /[h]/g;
亲自试一试 »

定义和用法

[abc] 表达式用于查找方括号之间的任何字符。

方括号内的字符可以是任何字符或字符范围:

  • [abcde..] - 括号中的任何字符
  • [A-Z] - 从大写字母A到大写字母Z的任意字符
  • [a-z] - 从小写字母a到小写字母z的任意字符
  • [A-z ]- 从大写字母A到小写字母z的任意字符

提示: 使用 [^abc] 表达式查找括号之外的任何字符。


浏览器支持

表达式
[abc] Yes Yes Yes Yes Yes

语法

new RegExp("[abc]")

或者简写:

/[abc]/

带修饰语的语法

new RegExp("[abc]", "g")

或者简写:

/[abc]/g


更多实例

实例

对字符串中的 "i" 和 "s" 进行全局搜索:

var str = "Do you know if this is all there is?";
var patt1 = /[is]/gi;
亲自试一试 »

实例

对字符串中从小写字母 "a" 到小写字母 "h" 的字符范围进行全局搜索:

var str = "Is this all there is?";
var patt1 = /[a-h]/g;
亲自试一试 »

实例

对从大写字母 "A" 到大写字母 "E" 的字符范围进行全局搜索:

var str = "I SCREAM FOR ICE CREAM!";
var patt1 = /[A-E]/g;
亲自试一试 »

实例

对从大写字母 "A" 到小写字母 "e" 的字符范围进行全局搜索(将搜索所有大写字母,但仅搜索从 a 到 e 的小写字母)。

var str = "I Scream For Ice Cream, is that OK?!";
var patt1 = /[A-e]/g;
亲自试一试 »

实例

对字符跨度 [a-s] 进行全局搜索,不区分大小写:

var str = "I Scream For Ice Cream, is that OK?!";
var patt1 = /[a-s]/gi;
亲自试一试 »

实例

"g" 和 "gi" 的演示-搜索字符:

var str = "THIS This this";
var patt1 = /[THIS]/g;

var str = "THIS This this";
var patt1 = /[THIS]/gi;
亲自试一试 »