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Perfectly compatible with multiple browsers, js judgment image path code summary_javascript skills

WBOY
WBOYOriginal
2016-05-16 16:03:182224browse

The first way

//检查图片是否存在
function CheckImgExists(imgurl) {
var ImgObj = new Image(); //判断图片是否存在
ImgObj.src = imgurl;
//没有图片，则返回-1
if (ImgObj.fileSize > 0 || (ImgObj.width > 0 && ImgObj.height > 0)) {
alert(imgurl + '存在');
} else {
alert(imgurl + '不存在');
}
}
CheckImgExists('/editor/simple/FileIconDir/rar.gif');
CheckImgExists('/editor/simple/FileIconDir/rarsdfs.gif');

Another implementation method

Copy code The code is as follows:
090ef25f054448c759e8ee90c6fb3a8a

The third way

<script language="javascript" type="text/javascript">
//载入失败调用此函数
function defaultImg(T)
{
T.src = "images/closelabel.gif";//默认图片地址
}

//载入成功后会调用此函数
function LoadOK()
{
alert("LoadOK");
}
</script>
</head>

<body>
<img src="123.jpg" onerror="defaultImg(this);" onload="LoadOK()"/>
  <!--123.jpg 是错误图片地址-->

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