你也可以使用include

  const isApple = ['iPhone', 'iPad', 'iPod', 'iPad Simulator', 'iPhone Simulator', 'iPod Simulator',].includes(navigator.platform)

因为导航器。平台已弃用，最好不再使用，我想添加一个其他解决方案。

你可以通过检查navigator.vendor来过滤MacOS系统。 当结果是苹果电脑公司，你知道它是MacOS。

一个简化的、易于扩展的版本。

var iOS = ['iPad', 'iPhone', 'iPod'].indexOf(navigator.platform) >= 0;

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.

没有必要测试导航器。userAgent或navigator.platform:

const isIOS = typeof navigator.standalone === 'boolean';

导航器。standalone只在iOS Safari上设置。参见MDN, Safari HTML参考。

更新:我最初的答案不包括在桌面模式下的iPad(在即将推出的iPadOS 13及更高版本中，默认更改为桌面模式)。 这对我的用例很好，如果不适合你，使用这个更新:

// iPhone and iPad including iPadOS 13+ regardless of desktop mode settings

iOSiPadOS = /^iP/.test(navigator.platform) ||
           /^Mac/.test(navigator.platform) && navigator.maxTouchPoints > 4;

这应该是安全的，只要 台式mac电脑根本不支持触摸事件 或不超过4个触摸点(当前iOS设备支持5个触摸点) 这是因为regexp ^首先检查平台字符串的起始位置，如果没有“iP”就停止(无论如何都比搜索长UA字符串直到结束快)。 它比导航仪安全。userAgent检查为导航器。平台不太可能是伪造的 检测iPhone / iPad模拟器

---

ORIGINAL ANSWER:
Wow, a lot of longish tricky code here. Keep it simple, please!

以我之见，这一个速度快，省钱，而且运行良好:

 iOS = /^iP/.test(navigator.platform);

  // or, if you prefer it verbose:
 iOS = /^(iPhone|iPad|iPod)/.test(navigator.platform);