JS校验

function isBlank(obj) {
    if(obj == null || obj == '' || $.trim(obj) == '') {
        return true;
    }
    return false;
}
function isNotBlank(obj) {
    return !isBlank(obj);
}
function isInt(val) {
var reg =/^[0-9]*[1-9][0-9]*$/;
var re = new RegExp(reg);
    return re.test(val);
}

判断日期时间格式yyyy-mm-dd  hh:mm
function isDateTime(dt) {
var reg = /^(\d{1,4})-(\d{1,2})-(\d{1,2})\s+(\d{1,2}):(\d{1,2})$/;
var re = new RegExp(reg);
//alert(re.test(dt)+'  '+dt.indexOf(" "));
if(re.test(dt)) {
var date = dt.substring(0, dt.indexOf(" "));
if(isDate(date)) {
var time = dt.substring(dt.indexOf(" ")+1, dt.length);
var hh = time.substring(0,time.indexOf(":"));
if(!(parseInt(hh) >= 0 && parseInt(hh)<24)) {
return false;
}
var mm = time.substring(time.indexOf(":")+1,time.length);
if(!(parseInt(mm) >= 0 && parseInt(mm)<=60)) {
return false;
}
return true;
}
}
return false;
}

判断日期格式yyyy-mm-dd
function isDate(date) {
if(date) {
var result = date.match(/^(\d{1,4})-(\d{1,2})-(\d{1,2})$/);
if (result == null) {
return false;
}
var d = new Date(result[1], result[2] - 1, result[3]);
return (d.getFullYear() == result[1] && (d.getMonth() + 1) == result[2] && d.getDate() == result[3]);
} else {
return false;
}
}