JS 参考资料

按类别分类的 JS 按字母顺序排列的 JS

JavaScript

JS 数组 JS 布尔值

constructor prototype toString() valueOf()

constructor() extends static super

JS 日期 JS 错误

decodeURI() decodeURIComponent() encodeURI() encodeURIComponent() escape() eval() Infinity isFinite() isNaN() NaN Number() parseFloat() parseInt() String() undefined unescape()

parse() stringify()

new Map clear() delete() entries() forEach() get() groupBy() has() keys() set() size values()

JS 数学 JS 数字 JS 对象 JS 运算符 JS 优先级 JS Promise

all() allSettled() any() catch() finally() race() reject() resolve() then()

JS 正则表达式

修饰符: g i d m 分组: [abc] [^abc] [0-9] [^0-9] (x|y) 元字符: . \w \W \d \D \s \S \b \B \0 \n \f \r \t \v \xxx \xdd \uxxxx 量词: + * ? {X} {X,Y} {X,} $ ^ ?= ?! 属性: constructor global ignoreCase lastIndex multiline source 方法: compile() exec() test() toString()

new Set add() clear() delete() entries() forEach() has() keys() size values()

break class const continue debugger do...while for for...in for...of function if...else let return switch throw try...catch var while

JS 字符串 JS TypedArray

Window

Window 对象 Window 控制台

assert() clear() count() error() group() groupCollapsed() groupEnd() info() log() table() time() timeEnd() trace() warn()

Window 历史记录

back() forward() go() length

assign() hash host hostname href origin pathname port protocol reload() replace() search

窗口导航器

appCodeName appName appVersion cookieEnabled geolocation javaEnabled() language onLine platform product taintEnabled() userAgent

availHeight availWidth colorDepth height pixelDepth width

HTML DOM

HTML 文档 HTML 元素

accessKey addEventListener() appendChild() attributes blur() childElementCount childNodes children classList className click() clientHeight clientLeft clientTop clientWidth cloneNode() closest() compareDocumentPosition() contains() contentEditable dir firstChild firstElementChild focus() getAttribute() getAttributeNode() getBoundingClientRect() getElementsByClassName() getElementsByTagName() hasAttribute() hasAttributes() hasChildNodes() id innerHTML innerText insertAdjacentElement() insertAdjacentHTML() insertAdjacentText() insertBefore() isContentEditable isDefaultNamespace() isEqualNode() isSameNode() isSupported() lang lastChild lastElementChild matches() namespaceURI nextSibling nextElementSibling nodeName nodeType nodeValue normalize() offsetHeight offsetWidth offsetLeft offsetParent offsetTop outerHTML outerText ownerDocument parentNode parentElement previousSibling previousElementSibling querySelector() querySelectorAll() remove() removeAttribute() removeAttributeNode() removeChild() removeEventListener() replaceChild() scrollHeight scrollIntoView() scrollLeft scrollTop scrollWidth setAttribute() setAttributeNode() style tabIndex tagName textContent title

getNamedItem() isId item() length name removeNamedItem() setNamedItem() specified value

item() length namedItem()

HTML 节点列表

entries() forEach() item() keys() length values()

HTML DOMTokenList

add() contains() entries() forEach() item() keys() length remove() replace() supports() toggle() value values()

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 HTML 事件 HTML 事件 HTML 事件对象

动画事件剪贴板事件拖放事件事件焦点事件哈希更改事件输入事件键盘事件鼠标事件页面转换事件历史记录状态事件进度事件存储事件触摸事件过渡事件用户界面事件滚轮事件

HTML 事件属性 HTML 事件方法

getModifierState() preventDefault() stopImmidiatePropagation() stopPropagation()

Web APIs

API 画布 API 控制台 API 获取 API 全屏

exitFullscreen() fullscreenElement fullscreenEnabled() requestFullscreen()

API 地理位置

coordinates getCurrentPosition() position

API 历史记录 API 媒体查询列表 API 存储

clear() getItem() key() length removeItem() setItem()

API 验证 API Web

crypto.getRandomNumber()

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>

其他参考资料

CSSStyleDeclaration

cssText getPropertyPriority() getPropertyValue() item() length parentRule removeProperty() setProperty()

JS 转换

Video autoplay 属性

❮ Video 对象

示例

找出视频是否在准备好后立即开始播放

var x = document.getElementById("myVideo").autoplay;

描述

autoplay 属性设置或返回视频是否应该在加载后立即开始播放。

此属性反映了 <video> autoplay 属性。

如果存在，它指定视频应该在加载后自动开始播放。

浏览器支持

属性
autoplay	是	9.0	是	是	是

语法

返回 autoplay 属性

videoObject.autoplay

设置 autoplay 属性

videoObject.autoplay = true|false

属性值

值	描述
true\|false	指定视频是否应该在加载后自动开始播放 true - 表示视频应该在加载后立即开始播放 loaded false - 默认值。表示视频不应该在加载后立即开始播放

技术细节

返回值	布尔值，如果视频自动开始播放，则返回 true，否则返回 false
默认值	false

更多示例

示例

启用自动播放，并重新加载视频

var x = document.getElementById("myVideo");
x.autoplay = true;
x.load();

示例

如何创建 <video> 元素并设置 autoplay 属性的演示

var x = document.createElement("VIDEO");

相关页面

HTML 参考: HTML <video> autoplay 属性

❮ Video 对象

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