getAttribute方法不能在IE中使用，但可以在其他浏览器中使用

Question

I wrote a JavaScript to get the value of the class attribute using get Attribute method. It's working and I satisfied with my requirement in all browsers except IE.

The text area component inserted dynamically in to a jsf page. Whenever onload we execute this JavaScript function to show text editor for text area.

Here is my JavaScript:

  function showingRTFTextArea(){
   // alert("before Starting");
    var textareaEle=document.getElementsByTagName("textarea");
   // alert("Textarea fields:"+textareaEle.toString());
    for(var i=0;i<textareaEle.length;i++){
            var textareaObj=textareaEle[i];
            //alert(textareaObj.getAttribute('Class'));
            if(textareaObj.getAttribute('Class')=='rtfclass'){
                var nameOfEle=textareaObj.getAttribute('name');
                 CKEDITOR.inline(nameOfEle);
               //  alert("set the RTF");
            }
    }

Answer 1

对于IE，请尝试使用className而不是class。

if(textareaObj.getAttribute('className')=='rtfclass')

Answer 2

if you just want to test for the presence of a CSS class this works in all browsers:

if(textareaObj.classList.contains('rtfclass')){
//...

}