Use navigator.userAgent
Detection code snippets of mobile devices (including iPads)
The following code snippet demonstrates how to detect mobile devices (including iPads) using navigator.userAgent
:
function detectmob() { return !!navigator.userAgent.match(/iPad|iPhone|Android|BlackBerry|Windows Phone|webOS/i)); }
Please note that this method intentionally does not detect Kindle Fire and PlayBook. To add tablet support, add |playbook|silk
.
Other methods:
var isMobile = { Android: function() { return navigator.userAgent.match(/Android/i); }, BlackBerry: function() { return navigator.userAgent.match(/BlackBerry/i); }, iOS: function() { return navigator.userAgent.match(/iPhone|iPad|iPod/i); }, Opera: function() { return navigator.userAgent.match(/Opera Mini/i); }, Windows: function() { return navigator.userAgent.match(/IEMobile/i); }, any: function() { return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows()); }}; }
How to use:
if( isMobile.any() ) alert('Mobile');
To check if the user is using a specific mobile device:
if( isMobile.iOS() ) alert('iOS');
Source: https://www.php.cn/link/524e30e771dba8110c0241a0882023d0 https://www.php.cn/link/abe6f17ee7a1e4775951399035e00841
FAQs on Detection of Mobile Devices (including iPads) using navigator.userAgent
to detect iOS devices? navigator.userAgent
The attribute in JavaScript can be used to detect whether the device is running on iOS. This property returns a string representing the browser's user agent header. To detect iOS devices, you can search the user agent string for "iPhone", "iPad", or "iPod" string using regular expressions. Here is a simple example: navigator.userAgent
var isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent) && !window.MSStream;In this code,
returns the user agent string, and the navigator.userAgent
method checks whether there is "iPad", "iPhone" or "iPod" in this string. test()
Some are used to exclude Windows Phones. !window.MSStream
to detect other mobile devices? navigator.userAgent
Yes, the attribute can be used to detect various mobile devices. For example, to detect an Android device, you can search for the "Android" string in the user agent string. Here is an example: navigator.userAgent
var isAndroid = /Android/.test(navigator.userAgent);If the device is running on Android, this code will return true, otherwise it will return false. Similarly, you can detect other mobile devices by searching the corresponding string in the user agent string.
Can I use
to detect the browser? navigator.userAgent
Yes, you can use the attribute to detect the browser. Different browsers have different user agent strings. For example, if the user agent string contains "Chrome", the browser is Google Chrome. Here is an example: navigator.userAgent
var isChrome = /Chrome/.test(navigator.userAgent);If the browser is Google Chrome, this code will return true, otherwise false. Similarly, you can detect other browsers by searching for the corresponding string in the user agent string.
navigator.userAgent
How reliable is it used for equipment inspection?
Although the navigator.userAgent
attribute can be used for device detection, it is not always 100% reliable. User agent strings are easily forged or changed, and different browsers and devices may use similar user agent strings. Therefore, it is generally recommended to use feature detection for critical functions rather than user agent detection.
Can I use navigator.userAgent
to detect the operating system of the device?
Yes, navigator.userAgent
attributes can be used to detect the operating system of a device. For example, to detect a Windows device, search the User Agent string for a "Win" string. Here is an example:
function detectmob() { return !!navigator.userAgent.match(/iPad|iPhone|Android|BlackBerry|Windows Phone|webOS/i)); }
If the device is running on a Windows system, this code will return true, otherwise it will return false. Similarly, you can detect other operating systems by searching the corresponding string in the user agent string.
How to use navigator.userAgent
to detect general mobile devices?
To detect general mobile devices, you can search for strings that are common in user agent strings for mobile devices. Here is an example:
var isMobile = { Android: function() { return navigator.userAgent.match(/Android/i); }, BlackBerry: function() { return navigator.userAgent.match(/BlackBerry/i); }, iOS: function() { return navigator.userAgent.match(/iPhone|iPad|iPod/i); }, Opera: function() { return navigator.userAgent.match(/Opera Mini/i); }, Windows: function() { return navigator.userAgent.match(/IEMobile/i); }, any: function() { return (isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows()); }}; }
If the device is a mobile device, this code will return true, otherwise it will return false. Regular expression /Mobi|Android/i
Checks whether the user agent string contains "Mobi" (used by many mobile devices) or "Android".
Can I use navigator.userAgent
to detect the screen size of the device?
No, navigator.userAgent
attribute cannot be used to detect the screen size of the device. It only provides information about the browser and operating system. To get the screen size of the device, you can use the window.screen
object in JavaScript.
Can I use navigator.userAgent
to detect the orientation of the device?
No, navigator.userAgent
attribute cannot be used to detect the orientation of the device. It only provides information about the browser and operating system. To get the orientation of the device, you can use the window.orientation
attribute in JavaScript.
Can I use navigator.userAgent
to detect if the device is a tablet?
While you can detect certain tablets (such as iPads) using the navigator.userAgent
attribute, it does not always reliably detect all tablets. Different tablets may use different user agent strings, some may be similar to those of a mobile phone or desktop computer.
Can the user agent string be changed?
Yes, user agent strings can be changed or forged. This is usually used for testing purposes or bypass certain limitations. However, changing the user agent string can cause unexpected behavior or compatibility issues and is generally not recommended for regular browsing.
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