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JS 参考手册

JS 参考手册（字母排序）

JavaScript

JS Arrays
Array( ) at() concat() constructor copyWithin() entries() every() fill() filter() find() findIndex() findLast() findLastIndex() flat() flatMap() forEach() from() includes() indexOf() isArray() join() keys() lastIndexOf() length map() of() pop() prototype push() reduce() reduceRight() rest (...) reverse() shift() slice() some() sort() splice() spread (...) toReversed() toSorted() toSpliced() toString() unshift() values() valueOf() with()
JS Boolean
Boolean() new Boolean() constructor prototype toString() valueOf()
JS Classes
constructor() extends static super
JS Dates
new Date() constructor getDate() getDay() getFullYear() getHours() getMilliseconds() getMinutes() getMonth() getSeconds() getTime() getTimezoneOffset() getUTCDate() getUTCDay() getUTCFullYear() getUTCHours() getUTCMilliseconds() getUTCMinutes() getUTCMonth() getUTCSeconds() now() parse() prototype setDate() setFullYear() setHours() setMilliseconds() setMinutes() setMonth() setSeconds() setTime() setUTCDate() setUTCFullYear() setUTCHours() setUTCMilliseconds() setUTCMinutes() setUTCMonth() setUTCSeconds() toDateString() toISOString() toJSON() toLocaleDateString() toLocaleTimeString() toLocaleString() toString() toTimeString() toUTCString() UTC() valueOf()
JS Error
isError() name message
JS Global
decodeURI() decodeURIComponent() encodeURI() encodeURIComponent() escape() eval() Infinity isFinite() isNaN() NaN Number() parseFloat() parseInt() String() undefined unescape()
JS Iterators
drop() every() filter() find() flatMap() forEach() map() reduce() some() take()
JS JSON
parse() stringify()
JS Maps
new Map clear() delete() entries() forEach() get() groupBy() has() keys() set() size values()
JS Math
abs() acos() acosh() asin() asinh() atan() atan2() atanh() cbrt() ceil() clz32() cos() cosh() E exp() expm1() f16round() floor() fround() LN2 LN10 log() log10() log1p() log2() LOG2E LOG10E max() min() PI pow() random() round() sign() sin() sinh() sqrt() SQRT1_2 SQRT2 tan() tanh() trunc()
JS Numbers
constructor EPSILON isFinite() isInteger() isNaN() isSafeInteger() MAX_SAFE_INTEGER MIN_SAFE_INTEGER MAX_VALUE MIN_VALUE NEGATIVE_INFINITY POSITIVE_INFINITY parseFloat() parseInt() prototype toExponential() toFixed() toLocaleString() toPrecision() toString() valueOf() NaN
JS Objects
assign() constructor create() defineProperties() defineProperty() delete entries() freeze() fromEntries() getOwnPropertyDescriptor() getOwnPropertyDescriptors() getOwnPropertyNames() groupBy() isExtensible() isFrozen() isSealed() keys() preventExtensions() prototype seal() toString() valueOf() values()
JS Operators JS Assignment
Assign Simple Assign Add Assign Subtract Assign Multiply Assign Divide Assign Remainder Assign Colon Assign AND Assign OR Assign Nullish
JS Arithmetic
Addition Subtraction Multiplication Division Exponentiation Remainder Increment Decrement Concatenation Unary Plus Unary Negation
JS Comparison
Equal Strict Equal Not Equal Strict Not Equal Greater Than Less Than Greater Equal Less Equal
JS Logical Operators
Logical AND Logical OR Logical NOT Logical Nullish
JS Bitwise Operators
Bitwise AND Bitwise OR Bitwise NOT Bitwise XOR Bitwise Left Bitwise Right Bitwise Signed
JS Misc Operators
: ?. ... () ? x : y => delete in instanceof typeof void
JS Precedence JS Promises
all() allSettled() any() catch() finally() race() reject() resolve() then()
JS RegExp Patterns
/d /g /i /m /s /u /v /y [a] [^a] [abc] [^abc] [A-Z] [^A-Z] [0-9] [^0-9] a|b . \w \W \d \D \s \S [\b] \0 \n \f \r \t \v \p \P \ddd \xdd \udddd ^ $ \b \B x(?=y) x(?!y) (?<=y)x (?<!y)x (x) (?<name>x) (?flags:x) + * ? {n} {n,m} {n,}
JS RegExp Reference
compile() constructor dotAll escape() exec() flags global hasIndices ignoreCase lastIndex multiline source sticky test() toString() unicode unicodeSets
JS Sets
new Set add() clear() delete() difference() entries() forEach() has() intersection() isDisjointFrom() isSubsetOf() isSupersetOf() keys() size symmetricDifference() union() values()
JS Statements
break class const continue debugger do...while for for...in for...of function if...else let return switch throw try...catch var while
JS Strings
at() charAt() charCodeAt() codePointAt() concat() constructor endsWith() fromCharCode() includes() indexOf() isWellFormed() lastIndexOf() length localeCompare() match() matchAll() padEnd() padStart() prototype repeat() replace() replaceAll() search() slice() split() startsWith() substr() substring() toLocaleLowerCase() toLocaleUpperCase() toLowerCase() toString() toUpperCase() toWellFormed() trim() trimEnd() trimStart() valueOf()
JS Typed Arrays
Int8Array Uint8Array Uint8ClampedArray Int16Array Uint16Array Int32Array Uint32Array BigInt64Array Float16Array Float32Array Float64Array BigUint64Array
JS Typed Reference
at() byteLength byteOffset bytesPerElement copyWithin() entries() every() fill() filter() find() findIndex() findLast() findLastIndex() forEach() from() includes() indexOf() join() keys() lastIndexOf() length map() name of() reduce() reduceRight() reverse() set() slice() some() sort() subarray() toLocaleString() toReversed() toSorted() toString() values() with()

Window

Window Object
addeventlistener() alert() atob() blur() btoa() clearInterval() clearTimeout() close() closed confirm() console defaultStatus document focus() frameElement frames history getComputedStyle() innerHeight innerWidth length localStorage location matchMedia() moveBy() moveTo() name navigator open() opener outerHeight outerWidth pageXOffset pageYOffset parent print() prompt() removeEventlistener() resizeBy() resizeTo() screen screenTop screenX screenY scrollBy() scrollTo() scrollX scrollY sessionStorage self setInterval() setTimeout() status stop() top screenLeft
Window Console
assert() clear() count() error() group() groupCollapsed() groupEnd() info() log() table() time() timeEnd() trace() warn()
Window History
back() forward() go() length
Window Location
assign() hash host hostname href origin pathname port protocol reload() replace() search
Window Navigator
appCodeName appName appVersion cookieEnabled geolocation javaEnabled() language onLine platform product taintEnabled() userAgent
Window Screen
availHeight availWidth colorDepth height pixelDepth width

HTML DOM

HTML Documents
activeElement addEventListener() adoptNode() anchors applets baseURI body charset characterSet close() cookie createAttribute() createComment() createDocumentFragment() createElement() createEvent() createTextNode() defaultView designMode doctype documentElement documentMode documentURI domain domConfig embeds execCommand() forms getElementById() getElementsByClassName() getElementsByName() getElementsByTagName() hasFocus() head images implementation importNode() inputEncoding lastModified links normalize() normalizeDocument() open() querySelector() querySelectorAll() readyState referrer removeEventListener() renameNode() scripts strictErrorChecking title URL write() writeln()
HTML Elements
accessKey addEventListener() after() append() appendChild() attributes before() blur() childElementCount childNodes children classList className click() clientHeight 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 offsetParent offsetTop outerHTML outerText ownerDocument parentNode parentElement previousSibling previousElementSibling querySelector() querySelectorAll() remove() removeAttribute() removeAttributeNode() removeChild() removeEventListener() replaceChild() scrollHeight scrollIntoView() scrollTop scrollWidth setAttribute() setAttributeNode() style tabIndex tagName textContent title clientLeft offsetLeft scrollLeft
HTML Attributes
getNamedItem() isId item() length name removeNamedItem() setNamedItem() specified value
HTML Collection
item() length namedItem()
HTML NodeList
entries() forEach() item() keys() length values()
HTML DOMTokenList
add() contains() entries() forEach() item() keys() length remove() replace() supports() toggle() value values()
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
onabort onafterprint animationend animationiteration animationstart onbeforeprint onbeforeunload onblur oncanplay oncanplaythrough onchange onclick oncontextmenu oncopy oncut ondblclick ondrag ondragend ondragenter ondragleave ondragover ondragstart ondrop ondurationchange onended onerror onfocus onfocusin onfocusout fullscreenchange fullscreenerror onhashchange oninput oninvalid onkeydown onkeypress onkeyup onload onloadeddata onloadedmetadata onloadstart onmessage onmousedown onmouseenter onmouseleave onmousemove onmouseover onmouseout onmouseup onoffline ononline onopen onpagehide onpageshow onpaste onpause onplay onplaying onprogress onratechange onresize onreset onscroll onsearch onseeked onseeking onselect onshow onstalled onsubmit onsuspend ontimeupdate ontoggle touchcancel touchend touchmove touchstart transitionend onunload onvolumechange onwaiting onwheel
HTML Event Objects
Animation Events Clipboard Events Drag Events Events Focus Events HashChange Events Input Events Keyboard Events Mouse Events PageTransition Events PopState Events Progress Events Storage Events Touch Events Transition Events Ui Events Wheel Events
HTML Event Properties
altKey (Mouse) altKey (Key) animationName bubbles button buttons cancelable charCode clientX clientY code ctrlKey (Mouse) ctrlKey (Key) currentTarget data defaultPrevented deltaX deltaY deltaZ deltaMode detail elapsedTime elapsedTime eventPhase inputType isTrusted key keyCode location metaKey (Mouse) metaKey (Key) newURL oldURL offsetX offsetY pageX pageY persisted propertyName relatedTarget relatedTarget screenX screenY shiftKey (Mouse) shiftKey (Key) target targetTouches timeStamp touches type which (Mouse) which (Key) view
HTML Event Methods
getModifierState() preventDefault() stopImmidiatePropagation() stopPropagation()

Web APIs

API Canvas API Console API Fetch API Fullscreen
exitFullscreen() fullscreenElement fullscreenEnabled() requestFullscreen()
API Geolocation
coordinates getCurrentPosition() position
API History API MediaQueryList API Storage
clear() getItem() key() length removeItem() setItem()
API Validation 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> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

HTML 事件属性

❮ 上一个 完整 JS 参考 下一个 ❯

HTML DOM 事件允许 JavaScript 在 HTML 文档中的元素上注册不同的事件处理程序。

事件通常与函数结合使用，并且函数不会在事件发生之前执行(例如，当用户单击按钮时)。

有关事件的教程，请阅读我们的JavaScript 事件教程。

HTML DOM 事件属性

属性 描述 属于
altKey 返回鼠标事件触发时是否按下了"ALT"键 MouseEvent
altKey 返回触发按键事件时是否按下了"ALT"键 KeyboardEvent, TouchEvent
animationName 返回动画的名称 AnimationEvent
bubbles 返回特定事件是否为冒泡事件 Event
button 返回鼠标事件触发时按下的鼠标按键 MouseEvent
buttons 返回鼠标事件触发时按下的鼠标按键 MouseEvent
cancelable 返回是否可以阻止事件的默认操作 Event
charCode 已弃用(请避免使用)
请改用key 属性		 KeyboardEvent
changeTouches 返回一个列表，其中包含在前一次触摸和本次触摸之间状态发生变化的所有触摸对象 TouchEvent
clientX 返回鼠标事件触发时鼠标指针相对于当前窗口的水平坐标 MouseEvent, TouchEvent
clientY 返回鼠标事件触发时鼠标指针相对于当前窗口的垂直坐标 MouseEvent, TouchEvent
clipboardData 返回一个包含剪贴板操作影响的数据的对象 ClipboardData
code 返回触发事件的按键代码 KeyboardEvent
composed 返回事件是否为组合事件 Event
ctrlKey 返回鼠标事件触发时是否按下了"Ctrl"键 MouseEvent
ctrlKey 返回按键事件触发时是否按下了"Ctrl"键 KeyboardEvent, TouchEvent
currentTarget 返回触发事件的元素 Event
data 返回插入的字符 InputEvent
dataTransfer 返回包含正在拖放或插入/删除的数据的对象 DragEvent, InputEvent
defaultPrevented 返回是否为该事件调用了 preventDefault() 方法 Event
deltaX 返回鼠标滚轮水平滚动的量(x 轴) WheelEvent
deltaY 返回鼠标滚轮垂直滚动的量(y 轴) WheelEvent
deltaZ 返回鼠标滚轮 z 轴滚动的量 WheelEvent
deltaMode 返回一个数字，表示增量值的计量单位(像素、行或页) WheelEvent
detail 返回一个数字，表示鼠标被点击的次数 UiEvent
elapsedTime 返回动画运行的秒数 AnimationEvent
elapsedTime 返回过渡效果已运行的秒数
eventPhase 返回当前正在评估的事件流阶段 Event
getModifierState() 返回一个包含受插入/删除操作影响的目标范围的数组 MouseEvent
inputType 返回更改类型(即"插入"或"删除") InputEvent
isComposing 返回事件的状态是否为"正在组成" InputEvent, KeyboardEvent
isTrusted 返回事件是否可信 Event
key 返回事件所代表的键的键值 KeyboardEvent
key 返回已更改存储项的键 StorageEvent
keyCode 已弃用(请避免使用)
请改用key 属性		 KeyboardEvent
location 返回键盘或设备上某个键的位置 KeyboardEvent
lengthComputable 返回进度长度是否可以计算 ProgressEvent
loaded 返回已加载的工作量 ProgressEvent
metaKey 返回事件触发时是否按下了"META"键 MouseEvent
metaKey 返回按键事件触发时是否按下了"meta"键 KeyboardEvent, TouchEvent
MovementX 返回鼠标指针相对于上次 mousemove 事件位置的水平坐标 MouseEvent
MovementY 返回鼠标指针相对于上次 mousemove 事件位置的垂直坐标 MouseEvent
newValue 返回已更改存储项的新值 StorageEvent
newURL 返回哈希值更改后的文档 URL HasChangeEvent
offsetX 返回鼠标指针相对于目标元素边缘位置的水平坐标 MouseEvent
offsetY 返回鼠标指针相对于目标元素边缘位置的垂直坐标 MouseEvent
oldValue 返回已更改存储项的旧值 StorageEvent
oldURL 返回哈希值更改之前的文档 URL HasChangeEvent
onemptied 当发生意外情况，媒体文件突然无法访问时(例如意外断开连接)
pageX 返回鼠标事件触发时鼠标指针相对于文档的水平坐标 MouseEvent
pageY 返回鼠标事件触发时鼠标指针相对于文档的垂直坐标 MouseEvent
persisted 返回网页是否已被浏览器缓存 PageTransitionEvent
propertyName 返回与动画或过渡效果关联的 CSS 属性名称 AnimationEvent, TransitionEvent
pseudoElement 返回动画或过渡效果的伪元素名称 AnimationEvent,TransitionEvent
region MouseEvent
relatedTarget 返回与触发鼠标事件的元素相关的元素 MouseEvent
relatedTarget 返回与触发事件的元素相关的元素 FocusEvent
repeat 返回某个键是否被反复按下 KeyboardEvent
screenX 返回事件触发时鼠标指针相对于屏幕的水平坐标 MouseEvent
screenY 返回事件触发时鼠标指针相对于屏幕的垂直坐标 MouseEvent
shiftKey 返回事件触发时是否按下了"SHIFT"键 MouseEvent
shiftKey 返回触发按键事件时是否按下了"SHIFT"键 KeyboardEvent, TouchEvent
state 返回包含历史记录条目副本的对象 PopStateEvent
storageArea 返回表示受影响存储对象的对象 StorageEvent
target 返回触发事件的元素 Event
targetTouches 返回与表面接触且 touchstart 事件发生在与当前目标元素相同目标元素上的所有触摸对象的列表 触摸事件
timeStamp 返回事件创建的时间(以毫秒为单位，相对于 Unix 纪元)。 Event
total 返回将要加载的总工作量 ProgressEvent
touches 返回当前与表面接触的所有触摸对象的列表 TouchEvent
transitionend CSS 过渡效果已完成 TransitionEvent
type 返回事件名称 Event
url 返回已更改项的文档 URL StorageEvent
which 已弃用(请避免使用)
请改用 button 属性		 MouseEvent
which 已弃用(请避免使用)
请改用 key 属性		 KeyboardEvent
view 返回事件发生的窗口对象的引用 UiEvent
x clientX 的别名 MouseEvent
y clientY 的别名 MouseEvent
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