Javascript：如何验证MM-DD-YYYY格式的日期？ [英] Javascript: how to validate dates in format MM-DD-YYYY?

问题描述

我在这里看到了一个潜在的答案，但是对于YYYY-MM-DD来说：

I saw a potential answer here but that was for YYYY-MM-DD: JavaScript date validation

：

String.prototype.isValidDate = function() 
{
     var IsoDateRe = new RegExp("^([0-9]{2})-([0-9]{2})-([0-9]{4})$");
     var matches = IsoDateRe.exec(this);
     if (!matches) return false;
     var composedDate = new Date(matches[3], (matches[1] - 1), matches[2]);
     return ((composedDate.getMonth() == (matches[1] - 1)) &&
      (composedDate.getDate() == matches[2]) &&
      (composedDate.getFullYear() == matches[3]));
}

如何让上述代码适用于MM-DD-YYYY和更好的MM / DD / YYYY？

How can I get the above code to work for MM-DD-YYYY and better yet MM/DD/YYYY?

谢谢。

推荐答案

function isValidDate(date)
{
    var matches = /^(\d{1,2})[-\/](\d{1,2})[-\/](\d{4})$/.exec(date);
    if (matches == null) return false;
    var d = matches[2];
    var m = matches[1] - 1;
    var y = matches[3];
    var composedDate = new Date(y, m, d);
    return composedDate.getDate() == d &&
            composedDate.getMonth() == m &&
            composedDate.getFullYear() == y;
}
console.log(isValidDate('10-12-1961'));
console.log(isValidDate('12/11/1961'));
console.log(isValidDate('02-11-1961'));
console.log(isValidDate('12/01/1961'));
console.log(isValidDate('13-11-1961'));
console.log(isValidDate('11-31-1961'));
console.log(isValidDate('11-31-1061'));

它可以工作。 （测试与Firebug，因此console.log（）。）

It works. (Tested with Firebug, hence the console.log().)

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