敏感词过滤

 <textarea rows="5" cols="50" id="txt1">你家的狗呢，傻，傻比，儿，儿子</textarea>
 <br>
 <input type="button" value="点击生成过滤后的文字" onclick="showText()" />
 <P>过滤后的文字:</P>
 <textarea rows="5" cols="50" id="txt2"></textarea>

// 过滤敏感字方法
function filterText(Text) {
    // 敏感词库
    var sensitiveWordsList = ["狗","儿子","草","傻比"];
    // 准备拼接的敏感词串
    var sensitiveWords = "";
    for(var i=0;i<sensitiveWordsList.length;i++){
        if(i<sensitiveWordsList.length-1){
            sensitiveWords += sensitiveWordsList[i]+"|";
        }else{
            sensitiveWords += sensitiveWordsList[i];
        }
        
    };
    // 拼接敏感词正则
    eval("var reBadWords = /"+sensitiveWords+"/gi;");
    // 替换敏感词
    var outText = Text.replace(reBadWords, "*");
    
    // confirm弹框
    if(outText!=Text){
        var r=confirm("你的留言中含有不恰当的词语,系统已自动为你修改,是否继续提交?");
        if(r==true){
            return outText;
        }else{
            return "";
        }
    }else{
        return outText;
    }
    
};

// 按钮点击方法
function showText() {
    var oInput1 = document.getElementById("txt1");
    var oInput2 = document.getElementById("txt2");
    oInput2.value = filterText(oInput1.value);
};