js過濾HTML標籤以及&nbsp

function removeHTMLTag(str) {
            str = str.replace(/<\/?[^>]*>/g,''); //去除HTML tag
            str = str.replace(/[ | ]*\n/g,'\n'); //去除行尾空白
            //str = str.replace(/\n[\s| | ]*\r/g,'\n'); //去除多餘空行
            str=str.replace(/ /ig,'');//去掉 
            return str;
}