JS 参考手册

JS 参考手册(类别排序) JS 参考手册(字母排序)

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen 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
DOM Window

Web APIs

API Console API Geolocation API History API Storage

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>

其他参考手册

CSSStyleDeclaration JS 类型转换


Window screenXscreenY 属性

❮ Window 对象

实例

返回新窗口相对于屏幕的X和Y坐标:

var myWindow = window.open("", "myWin");
myWindow.document.write("<p>This is 'myWin'");
myWindow.document.write("<br>ScreenX: " + myWindow.screenX);
myWindow.document.write("<br>ScreenY: " + myWindow.screenY + "</p>");
亲自试一试 »

页面下方有更多实例。


定义和用法

screenX 和 screenY 属性返回窗口相对于屏幕的X和Y坐标。


浏览器支持

表中的数字表示支持该属性的第一个浏览器版本。

属性
screenX Yes 9.0 Yes Yes Yes
screenY Yes 9.0 Yes Yes Yes

提示: 除了 Internet Explorer外,所有主要浏览器都支持screenX和screenY属性。 IE浏览器使用 "window.screenLeft" 和 "window.screenTop" 获得相同的值。


语法

window.screenX
window.screenY


技术细节

返回值: 一个数值,表示窗口相对于屏幕的水平或垂直距离,以像素为单位

更多实例

实例

以指定的左上方位置打开一个新窗口,并返回其坐标:

var myWindow = window.open("", "myWin", "left=700, top=350, width=200, height=100");
myWindow.document.write("<p>This is 'myWin'");
myWindow.document.write("<br>ScreenX: " + myWindow.screenX);
myWindow.document.write("<br>ScreenY: " + myWindow.screenY + "</p>");
亲自试一试 »

实例

跨浏览器解决方案(在 IE8 及更早版本中使用screenLeft和screenTop):

// 打开具有指定左侧和顶部位置的新窗口
var myWindow = window.open("", "myWin", "left=700, top=350, width=200, height=100");

/*
如果浏览器不支持 screenX 和 screen Y,
请改用 screenLeft 和 screenTop(反之亦然)
*/
var winLeft = myWindow.screenLeft ? myWindow.screenLeft : myWindow.screenX;
var winTop = myWindow.screenTop ? myWindow.screenTop : myWindow.screenY;

// 写入新窗口相对于屏幕的 x 和 y 坐标
myWindow.document.write("<p>This is 'myWin'");
myWindow.document.write("<br>Horizontal: " + winLeft);
myWindow.document.write("<br>Vertical: " + winTop + "</p>");
亲自试一试 »

❮ Window 对象