js根据类名删除所有标签

/* js根据类名删除所有标签
* 
*/
function removeTags(tagName,tagClass){
    var tagElements = document.getElementsByTagName( tagName );
    for( var m = 0 ; m < tagElements.length ; m++ ){
        if( tagElements[m].className == tagClass ){
            tagElements[m].parentNode.removeChild( tagElements[m] );
        }
    }
}
removeTags("span","weui-badge");