var isiOSSafari = (navigator.userAgent. var)match(/like Mac OS X/i)) ?真:假;

var isiOSSafari = (navigator.userAgent. var)match(/like Mac OS X/i)) ?真:假;

我在几年前写过这个，但我相信它仍然有效:

if(navigator.vendor != null && navigator.vendor.match(/Apple Computer, Inc./) && navigator.userAgent.match(/iPhone/i) || (navigator.userAgent.match(/iPod/i))) 

    {

        alert("Ipod or Iphone");

    }

else if (navigator.vendor != null && navigator.vendor.match(/Apple Computer, Inc./) && navigator.userAgent.match(/iPad/i))  

    {

        alert("Ipad");

    }

else if (navigator.vendor != null && navigator.vendor.match(/Apple Computer, Inc./) && navigator.userAgent.indexOf('Safari') != -1)

    {

        alert("Safari");

    }

else if (navigator.vendor == null || navigator.vendor != null)

    {

        alert("Not Apple Based Browser");

    }

检测iOS(均<12和13+)

社区维基，因为编辑队列说它是满的，所有其他答案目前是过时或不完整的。

const iOS_1to12 = /iPad|iPhone|iPod/.test(navigator.platform);

const iOS13_iPad = (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1));

const iOS1to12quirk = function() {
  var audio = new Audio(); // temporary Audio object
  audio.volume = 0.5; // has no effect on iOS <= 12
  return audio.volume === 1;
};

const isIOS = !window.MSStream && (iOS_1to12 || iOS13_iPad || iOS1to12quirk());

以上所有答案都不适用于所有版本的iOS(包括iOS 13)上的所有主要浏览器。下面是一个适用于所有iOS版本的Safari、Chrome和Firefox的解决方案:

var isIOS = (function () {
    var iosQuirkPresent = function () {
        var audio = new Audio();

        audio.volume = 0.5;
        return audio.volume === 1;   // volume cannot be changed from "1" on iOS 12 and below
    };

    var isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent);
    var isAppleDevice = navigator.userAgent.includes('Macintosh');
    var isTouchScreen = navigator.maxTouchPoints >= 1;   // true for iOS 13 (and hopefully beyond)

    return isIOS || (isAppleDevice && (isTouchScreen || iosQuirkPresent()));
})();

请注意，此代码片段的编写优先考虑的是可读性，而不是简洁性或性能。

解释:

If the user agent contains any of "iPod|iPhone|iPad" then clearly the device is iOS. Otherwise, continue... Any other user agent that does not contain "Macintosh" is not an Apple device and therefore cannot be iOS. Otherwise, it is an Apple device, so continue... If maxTouchPoints has a value of 1 or greater then the Apple device has a touch screen and therefore must be iOS since there are no Macs with touch screens (kudos to kikiwora for mentioning maxTouchPoints). Note that maxTouchPoints is undefined for iOS 12 and below, so we need a different solution for that scenario... iOS 12 and below has a quirk that does not exist in Mac OS. The quirk is that the volume property of an Audio element cannot be successfully set to any value other than 1. This is because Apple does not allow volume changes on the Audio element for iOS devices, but does for Mac OS. That quirk can be used as the final fallback method for distinguishing an iOS device from a Mac OS device.

为了检测iOS版本，我们必须像这样用Javascript代码解构用户代理:

 var res = navigator.userAgent.match(/; CPU.*OS (\d_\d)/);
    if(res) {
        var strVer = res[res.length-1];
        strVer = strVer.replace("_", ".");
        version = strVer * 1;
    }