JS常用工具

http://www.cnblogs.com/liszt/archive/2011/08/16/2140007.html

js/javascript删除字符串中的html标签

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‘); //去除多余空行
    str=str.replace(/ /ig,‘‘);//去掉 
    return str;
}

HTML转JS字符串

//Html结构转字符串形式显示 支持<br>换行

function ToHtmlString(htmlStr) {
    return toTXT(htmlStr).replace(/\&lt\;br[\&ensp\;|\&emsp\;]*[\/]?\&gt\;|\r\n|\n/g, "<br/>");
}
//Html结构转字符串形式显示
function toTXT(str) {
    var RexStr = /\<|\>|\"|\‘|\&|　| /g
    str = str.replace(RexStr,
    function (MatchStr) {
        switch (MatchStr) {
            case "<":
                return "<";
                break;
            case ">":
                return ">";
                break;
            case "\"":
                return """;
                break;
            case "‘":
                return "‘";
                break;
            case "&":
                return "&";
                break;
            case " ":
                return " ";
                break;
            case "　":
                return " ";
                break;
            default:
                break;
        }
    }
    )
    return str;
}