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JS Reference

JS by Category JS by Alphabet

JavaScript

JS Array
concat() constructor copyWithin() entries() every() fill() filter() find() findIndex() forEach() from() includes() indexOf() isArray() join() keys() length lastIndexOf() map() pop() prototype push() reduce() reduceRight() reverse() shift() slice() some() sort() splice() toString() unshift() valueOf()
JS Boolean
constructor prototype toString() valueOf()
JS Classes
constructor() extends static super
JS 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
name message
JS Global
decodeURI() decodeURIComponent() encodeURI() encodeURIComponent() escape() eval() Infinity isFinite() isNaN() NaN Number() parseFloat() parseInt() String() undefined unescape()
JS JSON
parse() stringify()
JS Math
abs() acos() acosh() asin() asinh() atan() atan2() atanh() cbrt() ceil() clz32() cos() cosh() E exp() expm1() 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 Number
constructor isFinite() isInteger() isNaN() isSafeInteger() MAX_VALUE MIN_VALUE NEGATIVE_INFINITY NaN POSITIVE_INFINITY prototype toExponential() toFixed() toLocaleString() toPrecision() toString() valueOf()
JS Operators JS RegExp
Modifiers: g i m Groups: [abc] [^abc] [0-9] [^0-9] (x|y) Metacharacters: . \w \W \d \D \s \S \b \B \0 \n \f \r \t \v \xxx \xdd \uxxxx Quantifiers: + * ? {X} {X,Y} {X,} $ ^ ?= ?! Properties: constructor global ignoreCase lastIndex multiline source Methods: compile() exec() test() toString()
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 String
charAt() charCodeAt() concat() constructor endsWith() fromCharCode() includes() indexOf() lastIndexOf() length localeCompare() match() prototype repeat() replace() search() slice() split() startsWith() substr() substring() toLocaleLowerCase() toLocaleUpperCase() toLowerCase() toString() toUpperCase() trim() valueOf()

Window

Window Object
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() resizeBy() resizeTo() screen screenLeft screenTop screenX screenY scrollBy() scrollTo() scrollX scrollY sessionStorage self setInterval() setTimeout() status stop() top
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

DOM Document
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()
DOM Element
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
DOM Attributes
getNamedItem() isId item() length name removeNamedItem() setNamedItem() specified value
DOM Events
abort afterprint animationend animationiteration animationstart beforeprint beforeunload blur canplay canplaythrough change click contextmenu copy cut dblclick drag dragend dragenter dragleave dragover dragstart drop durationchange ended error focus focusin focusout fullscreenchange fullscreenerror hashchange input invalid keydown keypress keyup load loadeddata loadedmetadata loadstart message mousedown mouseenter mouseleave mousemove mouseover mouseout mouseup offline online open pagehide pageshow paste pause play playing progress ratechange resize reset scroll search seeked seeking select show stalled submit suspend timeupdate toggle touchcancel touchend touchmove touchstart transitionend unload volumechange waiting wheel altKey altKey animationName bubbles button buttons cancelable charCode clientX clientY code ctrlKey ctrlKey currentTarget data defaultPrevented deltaX deltaY deltaZ deltaMode detail elapsedTime elapsedTime eventPhase getModifierState() inputType isTrusted key keyCode location metaKey metaKey newURL oldURL pageX pageY persisted preventDefault() propertyName relatedTarget relatedTarget screenX screenY shiftKey shiftKey stopImmediatePropagation() stopPropagation() target targetTouches timeStamp touches type which which view
DOM Event Objects
AnimationEvent ClipboardEvent DragEvent Event FocusEvent HashChangeEvent InputEvent KeyboardEvent MouseEvent PageTransitionEvent PopStateEvent ProgressEvent StorageEvent TouchEvent TransitionEvent UiEvent WheelEvent
DOM HTMLCollection
item() length namedItem()
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

Web APIs

API Console API Fullscreen
exitFullscreen() fullscreenElement fullscreenEnabled() requestFullscreen()
API Geolocation
coordinates position
API History API MediaQueryList API Storage
key() length getItem() setItem() removeItem() clear()

HTML Objects

<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>

Other References

CSSStyleDeclaration
cssText getPropertyPriority() getPropertyValue() item() length parentRule removeProperty() setProperty()
JS Conversion


JavaScript Number toLocaleString ()

❮ Trước đó Tham chiếu số JavaScript Tiếp theo ❯

Các ví dụ

Định dạng một số thành một chuỗi, sử dụng cài đặt ngôn ngữ:

let num = 1000000;
let text = num.toLocaleString();

Định dạng một số thành một chuỗi, sử dụng ngôn ngữ cụ thể của FINLAND:

let num = 1000000;
let text = num.toLocaleString("fi-FI");

Định dạng một số thành một chuỗi tiền tệ, sử dụng ngôn ngữ cụ thể của Hoa Kỳ:

let num = 1000000;
let text = num.toLocaleString("en-US", {style:"currency", currency:"USD"});

Thêm ví dụ bên dưới

Định nghĩa và Cách sử dụng

Giá toLocaleString()trị trả về một số dưới dạng một chuỗi, sử dụng định dạng ngôn ngữ địa phương.

Định dạng ngôn ngữ phụ thuộc vào thiết lập ngôn ngữ trên máy tính của bạn.

Cú pháp

number.toLocaleString(locales, options)

Thông số

Parameter Description
locales

 Optional.
The language specific format to use.
Click on the "Try it" button to see all values in action.

ar-SA Arabic (Saudi Arabia)
bn-BD Bangla (Bangladesh)
bn-IN Bangla (India)
cs-CZ Czech (Czech Republic)
da-DK Danish (Denmark)
de-AT Austrian German
de-CH "Swiss" German
de-DE Standard German (as spoken in Germany)
el-GR Modern Greek
en-AU Australian English
en-CA Canadian English
en-GB British English
en-IE Irish English
en-IN Indian English
en-NZ New Zealand English
en-US US English
en-ZA English (South Africa)
es-AR Argentine Spanish
es-CL Chilean Spanish
es-CO Colombian Spanish
es-ES Castilian Spanish (as spoken in Central-Northern Spain)
es-MX Mexican Spanish
es-US American Spanish
fi-FI Finnish (Finland)
fr-BE Belgian French
fr-CA Canadian French
fr-CH "Swiss" French
fr-FR Standard French (especially in France)
he-IL Hebrew (Israel)
hi-IN Hindi (India)
hu-HU Hungarian (Hungary)
id-ID Indonesian (Indonesia)
it-CH "Swiss" Italian
it-IT Standard Italian (as spoken in Italy)
ja-JP Japanese (Japan)
ko-KR Korean (Republic of Korea)
nl-BE Belgian Dutch
nl-NL Standard Dutch (as spoken in The Netherlands)
no-NO Norwegian (Norway)
pl-PL Polish (Poland)
pt-BR Brazilian Portuguese
pt-PT European Portuguese (as written and spoken in Portugal)
ro-RO Romanian (Romania)
ru-RU Russian (Russian Federation)
sk-SK Slovak (Slovakia)
sv-SE Swedish (Sweden)
ta-IN Indian Tamil
ta-LK Sri Lankan Tamil
th-TH Thai (Thailand)
tr-TR Turkish (Turkey)
zh-CN Mainland China, simplified characters
zh-HK Hong Kong, traditional characters
zh-TW Taiwan, traditional characters
options Optional.
An object with formatting options:

currency Legal values: any currency code (like "EUR", "USD", "INR", etc.)
currencyDisplay
 Legal values:
"symbol" (default)
"code"
"name"
localeMatcher
 Legal values:
"best-fit" (default)
"lookup"
maximumFractionDigits
 A number from 0 to 20 (default is 3)
maximumSignificantDigits
 A number from 1 to 21 (default is 21)
minimumFractionDigits
 A number from 0 to 20 (default is 3)
minimumIntegerDigits
 A number from 1 to 21 (default is 1)
minimumSignificantDigits
 A number from 1 to 21 (default is 21)
style
 Legal values:
"currency"
"decimal" (default)
"percent"
useGrouping
 Legal values:
"true" (default)
"false"

Giá trị trả lại

Loại Sự miêu tả
Một chuỗiMột chuỗi đại diện cho một số ở định dạng cục bộ.

Các ví dụ khác

Sử dụng tham số tùy chọn (đối tượng) để định dạng tiền tệ:

let num = new Number(1000000);
const myObj = {
  style: "currency",
  currency: "EUR"
}
let text = num.toLocaleString("en-GB", myObj);
let num = new Number(1000000);
let text = num.toLocaleString("en-GB", {style:"currency", currency:"EUR"});

Sử dụng ngôn ngữ cụ thể của JAPAN:

let num = 1000000;
let text = num.toLocaleString("ja-JP", {style:"currency", currency:"JPY"});

Hỗ trợ trình duyệt

toLocaleString() là một tính năng ECMAScript3 (ES3).

ES3 (JavaScript 1999) được hỗ trợ đầy đủ trong tất cả các trình duyệt:

Chrome IE Edge Firefox Safari Opera
Yes Yes Yes Yes Yes Yes

Hỗ trợ trình duyệt

(locales, options)được hỗ trợ trong tất cả các trình duyệt hiện đại:

Chrome IE Edge Firefox Safari Opera
Yes 11 Yes Yes Yes Yes
❮ Trước đó Tham chiếu số JavaScript Tiếp theo ❯