JS Reference

JS by Category JS by Alphabet

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS Operators JS RegExp JS Statements JS String

Window

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

HTML DOM

DOM Document DOM Element DOM Attributes DOM Events DOM Event Objects DOM HTMLCollection 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 API Geolocation API History API MediaQueryList API Storage

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 JS Conversion


Właściwość nośnika źródłowego

❮ Obiekt źródłowy

Przykład

Zwróć nośnik/urządzenie, dla którego dany plik jest zoptymalizowany:

var x = document.getElementById("mySource").media;

Definicja i użycie

Właściwość media ustawia lub zwraca wartość atrybutu media w elemencie <source>.

Atrybut media określa typ zasobu multimedialnego (dla jakiego nośnika/urządzenia plik jest zoptymalizowany).

Przeglądarka może użyć atrybutu media, aby określić, czy może odtworzyć plik, czy nie. Jeśli nie, może nie pobierać.


Obsługa przeglądarki

Property
media Yes Yes Yes Yes Yes

Uwaga: Atrybut HTML media NIE jest obsługiwany w żadnej z głównych przeglądarek.



Składnia

Zwróć właściwość multimediów:

sourceObject.media

Ustaw właściwość multimediów:

sourceObject.media = value

Uwaga: Ta właściwość może przyjmować kilka wartości.

Możliwi operatorzy

Value Description
and Specifies an AND operator
not Specifies a NOT operator
, Specifies an OR operator

Urządzenia

Value Description
all Suitable for all devices. This is default
aural Speech synthesizers
braille Braille feedback devices
handheld Handheld devices (small screen, limited bandwidth)
projection Projectors
print Print preview mode/printed pages
screen Computer screens
tty Teletypes and similar media using a fixed-pitch character grid
tv Television type devices (low resolution, limited scroll ability)

Wartości

Value Description
width Specifies the width of the targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (min-width:500px)"
height Specifies the height of the targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (max-height:700px)"
device-width Specifies the width of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (device-width:500px)"
device-height Specifies the height of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (device-height:500px)"
orientation Specifies the orientation of the target display/paper.
Possible values: "portrait" or "landscape"
Example: media="all and (orientation: landscape)"
aspect-ratio Specifies the width/height ratio of the targeted display area.
"min-" and "max-" prefixes can be used.
Example: media="screen and (aspect-ratio:16/9)"
device-aspect-ratio Specifies the device-width/device-height ratio of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="screen and (aspect-ratio:16/9)"
color Specifies the bits per color of target display.
"min-" and "max-" prefixes can be used.
Example: media="screen and (color:3)"
color-index Specifies the number of colors the target display can handle.
"min-" and "max-" prefixes can be used.
Example: media="screen and (min-color-index:256)"
monochrome Specifies the bits per pixel in a monochrome frame buffer.
"min-" and "max-" prefixes can be used.
Example: media="screen and (monochrome:2)"
resolution Specifies the pixel density (dpi or dpcm) of the target display/paper.
"min-" and "max-" prefixes can be used.
Example: media="print and (resolution:300dpi)"
scan Specifies scanning method of a tv display.
Possible values are "progressive" and "interlace".
Example: media="tv and (scan:interlace)"
grid Specifies if the output device is grid or bitmap.
Possible values are "1" for grid, and "0" otherwise.
Example: media="handheld and (grid:1)"

Szczegóły techniczne

Wartość zwrotu: String, reprezentujący wcięty typ zasobu multimedialnego

Powiązane strony

Odniesienie HTML: HTML <źródło> atrybut mediów


❮ Obiekt źródłowy