富文本框过滤js代码

版权声明：技术成长的艰难岁月，沧桑的是容颜，不变的是真心，虽然我不是特别喜欢Code ！ https://blog.csdn.net/qq_25037705/article/details/79791647

 function htmlEncode(str){  
        var s = "";
           if(str.length == 0) return "";
          s = str.replace(/&/g,"&");
           s = s.replace(/</g,"&lt;");
           s = s.replace(/>/g,"&gt;");
           s = s.replace(/ /g,"&nbsp;");
          s = s.replace(/\'/g,"&#39;");
          s = s.replace(/\"/g,"&quot;");
          return s;  
    }

function htmlDecode(str){  
         var s = "";
          if(str.length == 0) return "";
          s = str.replace(/&amp;/g,"&");
          s = s.replace(/&lt;/g,"<");
          s = s.replace(/&gt;/g,">");
          s = s.replace(/&nbsp;/g," ");
          s = s.replace(/&#39;/g,"\'");
          s = s.replace(/&quot;/g,"\"");
          return s;  
    }