// 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

参考链接：https://www.cnblogs.com/benpaodexiaopangzi/p/6230934.html