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JS 参考手册

JS 参考手册(字母排序)

JavaScript

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Window

Window Object Window Console Window History Window Location Window Navigator Window Screen

HTML DOM

HTML Documents HTML Elements HTML Attributes HTML Collection HTML NodeList HTML DOMTokenList HTML Styles
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundClip backgroundColor backgroundImage backgroundOrigin backgroundPosition backgroundRepeat 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 cssFloat cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap 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

HTML Events

HTML Events HTML Event Objects HTML Event Properties HTML Event Methods

Web APIs

API Canvas API Console API Fetch API Fullscreen API Geolocation API History API MediaQueryList API Storage API Validation API Web

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 RegExp \p 元字符


匹配拉丁字母:

let text1 = "A";
let text2 = "Ж";

let pattern = /\p{Script=Latin}/u;
亲自试一试 »

匹配 Unicode 字符属性:

let text = "😄";

let pattern = /\p{Emoji}/v;
let result = pattern.test(text);
亲自试一试 »

描述

Unicode 属性元字符用于匹配具有 Unicode 字符属性的字符。


语法

new RegExp("\p{Unicode property}","v")

或者:

/\p{Unicode 属性}/v

注意

\p 和 \P 仅在 Unicode 感知模式下受支持。

这意味着必须设置 \u 标志或 \v 标志。

Unicode 属性

受 /u 标志支持

类别 缩写 示例
Letter L ABcd
Uppercase_Letter Lu ABCD
Lowercase_Letter Ll abcd
Titlecase_letter Lt Nj (U+01CB)
Modifier_Letter Lm ˆ (U+02C6)
Other_Letter Lo not in Lu/Ll/Lt/Lm
Decimal_Number Nd 1234
Letter_Number Nl Ⅰ Ⅳ Ⅶ
Other_Number No ¼ ½ ¾
Math_Symbol Sm + = ∑
Currency_Symbol Sc $ £ € ¥
Other_Symbol So © ®
Script Sc Sc=Greek

支持 /v 标志

类别 示例
Emoji 😀 😁 😂 😃
Emoji_Presentation
Emoji_Modifier 👩🏿 👩🏾 👩🏽 👩🏼
Emoji_Modifier_Base
Emoji_Component 👩‍🦰 👩‍🦱 👩‍🦳 👩‍🦲
Extended_Pictographic 用于现代表情符号序列

正则表达式方法

正则表达式的搜索替换可以使用不同的方法。

以下是最常用的方法:

字符串方法

方法 描述
match(regex) 返回结果数组
matchAll(regex) 返回结果迭代器
replace(regex) 返回新字符串
replaceAll(regex) 返回一个新的字符串
search(regex) 返回第一个匹配项的索引
split(regex) 返回一个结果数组

正则表达式方法

方法 描述
regex.exec() 返回结果迭代器
regex.test() 返回 true 或 false

浏览器支持

/\p{Unicode 属性}/ 是 JavaScript 2018 的一项特性。

ES 2018 自 2020 年 6 月起,所有现代浏览器均已支持 ES 2018。

Chrome
63
Edge
79
Firefox
78
Safari
12
Opera
50
2017年12月 2020年1月 2020年6月 2018年9月 2018年1月

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