js中clientWidth, scrollWidth, innerWidth, outerWidth,offsetWidth的屬性彙總,測試瀏覽器:ie7~ie11、chrome 和 firefox等。 一、測試1:無滾動條時,dom對象的offsetWidth、clientWidth和scrol ...
js中clientWidth, scrollWidth, innerWidth, outerWidth,offsetWidth的屬性彙總,測試瀏覽器:ie7~ie11、chrome 和 firefox等。
一、測試1:無滾動條時,dom對象的offsetWidth、clientWidth和scrollWidth
(1)測試代碼
<!DOCTYPE HTML> <html lang="zh-cn"> <head> <meta charset="utf-8" /> <title>Javascript</title> <style> *{margin: 0;padding: 0;} body{font: 12px/2 Arial;background-color: #ccc;padding: 20px;} #b1{width: 530px;height: 320px;background-color: #fff;position: relative;} #b2{width: 220px;height: 130px;background-color: orange;border: 10px solid #085A90;padding: 10px;position: relative;left: 140px;top: 90px;} </style> </head> <body> <div id="b1"><div id="b2"></div></div> <script> window.onload = function(){ var oB2 = document.getElementById('b2'); console.log("offsetWidth="+oB2.offsetWidth, "offsetHeight="+oB2.offsetHeight); console.log("clientWidth="+oB2.clientWidth, "clientHeight="+oB2.clientHeight); console.log("offsetLeft="+oB2.offsetLeft, "offsetTop="+oB2.offsetTop); console.log("scrollWidth="+oB2.scrollWidth, "scrollHeight="+oB2.scrollHeight); console.log("scrollLeft="+oB2.scrollLeft, "scrollTop="+oB2.scrollTop); } </script> </body> </html>
(2)測試結果
IE7下,scrollWidth = 20,scrollHeight = 34
(3)圖解結果
二、測試2:有滾動條時,dom對象offsetWidth、clientWidth 和 scrollWidth
(1)測試代碼
<!DOCTYPE HTML> <html lang="zh-cn"> <head> <meta charset="utf-8" /> <title>Javascript</title> <style> *{margin: 0;padding: 0;} body{font: 12px/2 Arial;background-color: #ccc;padding: 20px;} #b1{width: 300px;height: 220px;background-color: #fff;position: relative;overflow: auto;border: 10px solid #999;padding: 10px;} #b2{width: 220px;height: 330px;background-color: orange;border: 10px solid #085A90;padding: 10px;position: relative;left: 140px;top: 90px;} </style> </head> <body> <div id="b1"><div id="b2"></div></div> <script> window.onload = function(){ var oB1 = document.getElementById('b1'); console.log("offsetWidth="+oB1.offsetWidth, "offsetHeight="+oB1.offsetHeight); console.log("clientWidth="+oB1.clientWidth, "clientHeight="+oB1.clientHeight); console.log("offsetLeft="+oB1.offsetLeft, "offsetTop="+oB1.offsetTop); console.log("scrollWidth="+oB1.scrollWidth, "scrollHeight="+oB1.scrollHeight); console.log("scrollLeft="+oB1.scrollLeft, "scrollTop="+oB1.scrollTop); } </script> </body> </html>
(2)測試結果
這裡我們需要讀取外層帶滾動條的 div#b1 的值。ie7~ie11、chrome 和 firefox 結果一致,如下:
(3)圖解結果
三、測試3:window對象的 outerWidth、innerWidth、pageXOffset 和 screenLeft(screenX)
(1)測試代碼
<script> window.onload = function(){ console.log("innerWidth="+window.innerWidth, "innerHeight=" + window.innerHeight); console.log("outerWidth="+window.outerWidth, "outerHeight=" + window.outerHeight); console.log("pageXOffset="+window.pageXOffset, "pageYOffset=" + window.pageYOffset); console.log("screenX="+window.screenX, "screenY=" + window.screenY); console.log("screenLeft="+window.screenLeft, "screenTop=" + window.screenTop); } </script>
(2)圖解結果(不同瀏覽器下,console 輸出與下圖部分有不同)