jquery 正则校验重复字符
正则表达式jquery实现校验效果或循环遍历校验
正则表达式
(\w)[^\1]{0,}\1
jquery实现
//校验重复
function checkRepeated(str) {
var reg = /(\w)[^\1]{0,}\1/g;
return reg.test(str);
}
var flag = checkRepeated(course);
if (flag) {
$.modal.alertError("字符串："+course+"<br/>是否有重复："+flag);
return false;
}
校验效果
或循环遍历校验
//校验重复信息
//var str = "40,42,45,46,42,43,41,40";
function checkRepeated(str) {
str = str.substring(0,str.lastIndexOf(","));
var strs = str.split(",");
var length = strs.length;
for (var i = 0; i < length-1; i++) {
for (var j = i+1; j < length; j++) {
if (strs[i] == strs[j]) {
return true;
}
}
}
return false;
}
