js 过滤字符 和检测 特殊字符【转】

// var str1 = str.replace(/\[\\'\\"\\\\\\/\\b\\f\\n\\r\\t\]/g, '');// 去掉转义字符  
// var str2= str.replace(/\[\\-\\\_\\,\\!\\|\\~\\`\\(\\)\\#\\$\\%\\^\\&\\\*\\{\\}\\:\\;\\"\\L\\\\?\]/g, '');// 去掉特殊字符  
// return str2;

var containSpecial = RegExp(/\[(\\ )(\\~)(\\!)(\\@)(\\#)(\\$)(\\%)(\\^)(\\&)(\\\*)(\\()(\\))(\\-)(\\\_)(\\+)(\\=)(\\\[)(\\\])(\\{)(\\})(\\|)(\\\\)(\\;)(\\:)(\\')(\\")(\\,)(\\.)(\\/)(\\)(\\?)(\\)\]+/);  
return ( containSpecial.test(s) ); 判断是否含有

var filterRule= /\[^0-9a-zA-Z\_\]/g;  
var judge= filterRule.test(str); //判断传进来的数据是否含有特殊字符。test函数返回匹配结

var rows=JSON.stringify(rows);////将json对象转换成json对符串  
var rows=JSON.parse(rows);//将json字符串转换成json对象

参考连接：http://www.javashuo.com/article/p-ombamkbh-bw.html