Reputation: 22547

How to detect a mobile device using jQuery

Is there a way to detect whether or not a user is using a mobile device in jQuery? Something similar to the CSS @media attribute? I would like to run a different script if the browser is on a handheld device.

The jQuery $.browser function is not what I am looking for.

Upvotes: 1959

Answers (30)

danielh

Reputation: 41

My experience using the mix of methods revealed some tricky issues -- that I solved using the discredited method of looking for "mobi" in the userAgent.

The case: an invitation page with "important" blocks of text (where, when, RSVP), and secondary (venue details). It displays fine on a desktop screen and a 15" lap top. But on a smart phone it is hard to read.

Solution: for "mobile" devices (that fit in your hand) --- increase the font size in the primary blocks, and hide the secondary blocks.

Alas: using width/height measures is misleading. My phone reports about the same as my laptop (~1000 x ~700). Thus using "< 768 pixels" would return the same result. Changing the size of the < threshold won't help! And the div.offsetWidth - div.clientWidth technique didn't help either.

Which is why -- to differentiate between smart phone and laptop -- I had to resort to looking for "mobi" in the user agent :(

The only real solution would be info on the physical size of the device?

Upvotes: 0

Daniel Hanrahan

Reputation: 4969

While Mozilla's Browser detection using the user agent now recommends against this solution:

Note: It's worth re-iterating: it's very rarely a good idea to use user agent sniffing. You can almost always find a better, more broadly compatible way to solve your problem!

it used to recommend:

In summary, we recommend looking for the string “Mobi” anywhere in the User Agent to detect a mobile device.

Like this:

if (/Mobi/.test(navigator.userAgent)) {
    // mobile!
}

This will match all common mobile browser user agents, including mobile Mozilla, Safari, IE, Opera, Chrome, etc.

Update for Android

EricL recommends testing for Android as a user agent also, as the Chrome user agent string for tablets does not include "Mobi" (the phone versions do however):

if (/Mobi|Android/i.test(navigator.userAgent)) {
    // mobile!
}

Upvotes: 296

Kareem

Reputation: 5422

Check the user agent values.

function ismobile(){
   if(/android|webos|iphone|ipad|ipod|blackberry|opera mini|Windows Phone|iemobile|WPDesktop|XBLWP7/i.test(navigator.userAgent.toLowerCase())) {
       return true;
   }
   else
    return false;
}

Upvotes: -1

Ronnie Smith

Reputation: 18585

Window.matchMedia()

The Window interface's matchMedia() method returns a new MediaQueryList object that can then be used to determine if the document matches the media query string, as well as to monitor the document to detect when it matches (or stops matching) that media query.

Usage notes You can use the returned media query to perform both instantaneous and event-driven checks to see if the document matches the media query.

To perform a one-time, instantaneous check to see if the document matches the media query, look at the value of the matches property, which will be true if the document meets the media query's requirements.

If you need to be kept aware of whether or not the document matches the media query at all times, you can instead watch for the change event to be delivered to the object. There's a good example of this in the article on Window.devicePixelRatio.

let mql = window.matchMedia('(max-width: 767px)');

Upvotes: -4

Jake

Reputation: 1067

What is the specific feature of a mobile device that means you want different behaviour?

Is it the input mechanism (touch and virtual keyboard vs mouse and physical keyboard), the smaller screen size, or something else?

For example, in CSS4 you can use @media (any-pointer: coarse) for touch-enabled devices and @media (pointer: coarse) for devices where the primary input is touch (i.e. phones and tablets whether or not an external keyboard is plugged in). CSS4 is mostly fully supported by modern browsers.

In JavaScript, you can use Window.matchMedia() to test for any CSS media query (including those above) as suggested in this SO answer. (I would have hoped for something more native by now, but couldn't find anything.)

Upvotes: -1

nelek

Reputation: 4322

I know it's very old question about this kind of detection.

My solution is based on scroller width (is exist or not).

// this function will check the width of scroller
// if scroller width is 0px it's mobile device

//function ismob() {
    var dv = document.getElementById('divscr');
    var sp=document.getElementById('res');
    if (dv.offsetWidth - dv.clientWidth == 10) {sp.innerHTML='Is mobile'; //return true; 
    } else {
    sp.innerHTML='It is not mobile'; //return false;
    }
//}

<!-- put hidden div on very begining of page -->
<div id="divscr" style="position:fixed;top:0;left:0;width:50px;height:50px;overflow:hidden;overflow-y:scroll;z-index:-1;visibility:hidden;"></div>
<span id="res"></span>

Upvotes: 9

user1212212

Reputation: 1405

navigator.userAgentData.mobile returns [true|false]

Upvotes: -3

Ahmad

Reputation: 9668

if you use bootstrap, you can add this element to page and check its visibility:

      <div id="mobile-detect" class="d-sm-none d-md-block" > </div>


function is_mobile() {
   if( $('#mobile-detect').css('display')=='none') {
       return true;
   }
   return false
}

Upvotes: -2

Tantrik

Reputation: 47

MDN Suggests checking for touchable points available by using Navigator.maxTouchPoints. If > 0 , the device is tappable and most likely a phone or tablet. https://developer.mozilla.org/en-US/docs/Web/API/Navigator/maxTouchPoints

Upvotes: 2

Vahid Alvandi

Reputation: 612

you need to controll resize

var  is_mobile = false;
        $(window).resize(function() {

            if ($('#mobileNav').css('display') == 'block') {
                is_mobile = true;
            }

            if (is_mobile == true) {

                console.log('is_mobile')
                document.addEventListener(
                    "DOMContentLoaded", () => {
                        new Mmenu("#mainMenu", {
                            "offCanvas": {
                                "position": "right-front"
                            }
                        });
                    }
                );

            }

        }).resize();

Upvotes: -1

topsoftwarepro

Reputation: 822

The following answer was adapted from the answer at https://attacomsian.com/blog/javascript-detect-mobile-device.

To detect if the user is using a mobile device in JavaScript, we can use the userAgent property.

This property is part of the navigator object and sent by the browser in HTTP headers. It contains information about the name, version, and platform of the browser.

With the value of userAgent, we can use a regular expression to test if it contains some keywords or not and then decide the type of the device (mobile, tablet, or desktop). Optionally, you can also combine this test with the width of the current window.

Here is a function that returns the type of device, the user is currently on:

function deviceType() {
    const ua = navigator.userAgent;
    if (/(tablet|ipad|playbook|silk)|(android(?!.*mobi))/i.test(ua)) {
        return "tablet";
    }
    else if (/Mobile|Android|iP(hone|od)|IEMobile|BlackBerry|Kindle|Silk-Accelerated|(hpw|web)OS|Opera M(obi|ini)/.test(ua)) {
        return "mobile";
    }
    return "desktop";
};
console.log(deviceType());

🔑 Note: The above solution is not always reliable. The value of the userAgent can be easily changed. For example, when we use bots to scrape a website, we can pass a completely different user agent value to hide our identity. It will make it difficult to detect the actual device type.

Upvotes: 2

sweets-BlingBling

Reputation: 4422

Editor's note: user agent detection is not a recommended technique for modern web apps. See the comments below this answer for confirmation of this fact. It is suggested to use one of the other answers using feature detection and/or media queries.

Instead of using jQuery you can use simple JavaScript to detect it:

if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
 // some code..
}

Or you can combine them both to make it more accessible through jQuery...

$.browser.device = (/android|webos|iphone|ipad|ipod|blackberry|iemobile|opera mini/i.test(navigator.userAgent.toLowerCase()));

Now $.browser will return "device" for all above devices

Note: $.browser removed on jQuery v1.9.1. But you can use this by using jQuery migration plugin Code

A more thorough version:

var isMobile = false; //initiate as false
// device detection
if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent) 
    || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(navigator.userAgent.substr(0,4))) { 
    isMobile = true;
}

Upvotes: 2309

James Westgate

Reputation: 11454

In one line of javascript:

var isMobile = ('ontouchstart' in document.documentElement && /mobi/i.test(navigator.userAgent));

If the user agent contains 'Mobi' (as per MDN) and ontouchstart is available then it is likely to be a mobile device.

EDIT: Updates the regex code in response to feedback in the comments. Using regex/mobi/i the i makes it case-insensitive, and mobi matches all mobile browsers. See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/User-Agent/Firefox

Upvotes: 32

Bienfait Rukundo

Reputation: 51

You could do simple thing very simple like this

(window.screen.width < 700) {
    //The device is a Mobile
} else {
    //The device is a Desktop
}

Upvotes: 4

Diego Favero

Reputation: 2145

The screen may be on desktop with a small resolution or a mobile with a wide resolution, as so, combining two answers found here in this question

const isMobile = window.matchMedia("only screen and (max-width: 760px)");
if (/Mobi|Tablet|iPad|iPhone/i.test(navigator.userAgent) || isMobile.matches) {
    console.log('is_mobile')
}

Upvotes: 2

Omer Hijazi

Reputation: 97

This is what I do:

function checkMobile() {
  var os = GetOS();
  if (os == "Android OS" || os == "iOS") {
     // do what you wanna do
     return true
  }
}

and to redirect I add location.href="mobile.website.com" and then add this body tag

<body onload="checkMobile()"></body>

Upvotes: -2

Gonçalo Peres

Reputation: 885

For me small is beautiful so I'm using this technique:

In CSS file:

/* Smartphones ----------- */
@media only screen and (max-width: 760px) {
  #some-element { display: none; }
}

In jQuery/JavaScript file:

$( document ).ready(function() {      
    var is_mobile = false;

    if( $('#some-element').css('display')=='none') {
        is_mobile = true;       
    }

    // now I can use is_mobile to run javascript conditionally

    if (is_mobile == true) {
        //Conditional script here
    }
 });

My objective was to have my site "mobile-friendly". So I use CSS Media Queries do show/hide elements depending on the screen size.

For example, in my mobile version I don't want to activate the Facebook Like Box, because it loads all those profile images and stuff. And that's not good for mobile visitors. So, besides hiding the container element, I also do this inside the jQuery code block (above):

if(!is_mobile) {
    (function(d, s, id) {
        var js, fjs = d.getElementsByTagName(s)[0];
        if (d.getElementById(id)) return;
        js = d.createElement(s); js.id = id;
        js.src = "//connect.facebook.net/pt_PT/all.js#xfbml=1&appId=210731252294735";
        fjs.parentNode.insertBefore(js, fjs);
    }(document, 'script', 'facebook-jssdk'));
}

You can see it in action at http://lisboaautentica.com

I'm still working on the the mobile version, so it's still not looking as it should, as of writing this.

Update by dekin88

There is a JavaScript API built-in for detecting media. Rather than using the above solution simply use the following:

$(function() {      
    let isMobile = window.matchMedia("only screen and (max-width: 760px)").matches;

    if (isMobile) {
        //Conditional script here
    }
 });

Browser Supports: http://caniuse.com/#feat=matchmedia

The advantage of this method is that it's not only simpler and shorter, but you can conditionally target different devices such as smartphones and tablets separately if necessary without having to add any dummy elements into the DOM.

Upvotes: 661

Sir Papilonius

Reputation: 113

Ya'll are doing way too much work.

if (window.screen.availWidth <= 425) {
   // do something
}

You can do this on page load through JS. No need to write long string lists to try and catch everything. Whoops, you missed one! Then you have to go back and change it/add it. The more popular phone sizes are about 425 in width or less (in portrait mode), tablets are around 700 ish and anything bigger is likely a laptop, desktop, or other larger device. If you need mobile landscape mode, maybe you should be working in Swift or Android studio and not traditional web coding.

Side note: This may not have been an available solution when it was posted but it works now.

Upvotes: -1

AmerllicA

Reputation: 32572

Just copy the following function and it returns a boolean value. its regex is looks like the marked answer but it is has some difference:

const isMobile = () =>
  /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series([46])0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(
    navigator.userAgent
  ) ||
  /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br([ev])w|bumb|bw-([nu])|c55\/|capi|ccwa|cdm-|cell|chtm|cldc|cmd-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc-s|devi|dica|dmob|do([cp])o|ds(12|-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly([-_])|g1 u|g560|gene|gf-5|g-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd-([mpt])|hei-|hi(pt|ta)|hp( i|ip)|hs-c|ht(c([- _agpst])|tp)|hu(aw|tc)|i-(20|go|ma)|i230|iac([ \-/])|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja([tv])a|jbro|jemu|jigs|kddi|keji|kgt([ /])|klon|kpt |kwc-|kyo([ck])|le(no|xi)|lg( g|\/([klu])|50|54|-[a-w])|libw|lynx|m1-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t([- ov])|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30([02])|n50([025])|n7(0([01])|10)|ne(([cm])-|on|tf|wf|wg|wt)|nok([6i])|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan([adt])|pdxg|pg(13|-([1-8]|c))|phil|pire|pl(ay|uc)|pn-2|po(ck|rt|se)|prox|psio|pt-g|qa-a|qc(07|12|21|32|60|-[2-7]|i-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h-|oo|p-)|sdk\/|se(c([-01])|47|mc|nd|ri)|sgh-|shar|sie([-m])|sk-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h-|v-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl-|tdg-|tel([im])|tim-|t-mo|to(pl|sh)|ts(70|m-|m3|m5)|tx-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c([- ])|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas-|your|zeto|zte-/i.test(
    navigator.userAgent.substr(0, 4)
  );

Upvotes: -2

Lauro Moraes

Reputation: 1388

An ES6 solution that uses several detection techniques within a try/catch block

The function consists of creating a "TouchEvent", seeking support for the "ontouchstart" event or even making a query to the mediaQueryList object.

Purposely, some queries that fail will throw a new error because as we are in a try/catch block we can use it as a fall back to consult the user agent.

I have no usage tests and in many cases it can fail as well as point out false positives.

It should not be used for any kind of real validation but, in a general scope for analysis and statistics where the volume of data can "forgive" the lack of precision, it may still be useful.

const isMobile = ((dc, wd) => {
    // get browser "User-Agent" or vendor ... see "opera" property in `window`
    let ua = wd.userAgent || wd.navigator.vendor || wd.opera;
    try {
        /**
         * Creating a touch event ... in modern browsers with touch screens or emulators (but not mobile) does not cause errors.
         * Otherwise, it will create a `DOMException` instance
         */
        dc.createEvent("TouchEvent");

        // check touchStart event
        (('ontouchstart' in wd) || ('ontouchstart' in dc.documentElement) || wd.DocumentTouch && wd.document instanceof DocumentTouch || wd.navigator.maxTouchPoints || wd.navigator.msMaxTouchPoints) ? void(0) : new Error('failed check "ontouchstart" event');

        // check `mediaQueryList` ... pass as modern browsers
        let mQ = wd.matchMedia && matchMedia("(pointer: coarse)");
        // if no have, throw error to use "User-Agent" sniffing test
        if ( !mQ || mQ.media !== "(pointer: coarse)" || !mQ.matches ) {
            throw new Error('failed test `mediaQueryList`');
        }

        // if there are no failures the possibility of the device being mobile is great (but not guaranteed)
        return true;
    } catch(ex) {
        // fall back to User-Agent sniffing
        return /(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(ua) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(ua.substr(0,4));
    }
})(document, window);


// to show result
let container = document.getElementById('result');

container.textContent = isMobile ? 'Yes, your device appears to be mobile' : 'No, your device does not appear to be mobile';

<p id="result"></p>

The regex used to test the user agent is a little old and was available on the website http://mobiledetect.com which is no longer in operation.

Maybe there is a better pattern but, I don't know.

Fonts:

TouchEvent: https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent
ontouchstart: https://developer.mozilla.org/en-US/docs/Web/API/GlobalEventHandlers/ontouchstart
mediaQueryList: https://developer.mozilla.org/en-US/docs/Web/API/MediaQueryList

PS:

As there is no way to identify with 100% accuracy neither by checking features, nor by examining the user agent string with regular expressions. The code snippet above should be seen only as: "one more example for this issue", as well as: "not recommended for use in production".

Upvotes: 4

GSite

Reputation: 954

I use this solution and it works fine on all devices:

if (typeof window.orientation !== "undefined" || navigator.userAgent.indexOf('IEMobile') !== -1) {
   //is_mobile
}

Upvotes: 1

Twil

Reputation: 107

Utilized previously mentioned sequielo solution and added the function for width/height check (to avoid screen rotation mistake). For selecting min/max borders for mobile viewport, I use this resource https://www.mydevice.io/#compare-devices

function isMobile() {
    try{ document.createEvent("TouchEvent"); return true; }
    catch(e){ return false; }
}

function deviceType() {
    var width = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
    var height = Math.max(document.documentElement.clientHeight, window.innerHeight || 0),screenType;
    if (isMobile()){
        if ((width <= 650 && height <= 900) || (width <= 900 && height <= 650))
            screenType = "Mobile Phone";
        else
            screenType = "Tablet";
    }
    else
        screenType = "Desktop";
  return screenType;
}

Upvotes: 0

Victor Juri

Reputation: 895

Great answer thanks. Small improvement to support Windows phone and Zune:

if (navigator.userAgent.match(/Android/i) ||
  navigator.userAgent.match(/webOS/i) ||
  navigator.userAgent.match(/iPhone/i) ||
  navigator.userAgent.match(/iPad/i) ||
  navigator.userAgent.match(/iPod/i) ||
  navigator.userAgent.match(/BlackBerry/) ||
  navigator.userAgent.match(/Windows Phone/i) ||
  navigator.userAgent.match(/ZuneWP7/i)
) {
  // some code
  self.location = "top.htm";
}

Upvotes: 9

WoodrowShigeru

Reputation: 1594

Depending on what for you want to detect mobile (meaning this suggestion won't suit everyone's needs), you might be able to achieve a distinction by looking at the onmouseenter-to-onclick millisecond difference, like I described in this answer.

Upvotes: 3

nescafe

Reputation: 187

You can use media query to be able to handle it easily.

isMobile = function(){
    var isMobile = window.matchMedia("only screen and (max-width: 760px)");
    return isMobile.matches ? true : false
}

Upvotes: 8

teknopaul

Reputation: 6770

If you want to test the user agent, the correct way is to, test the user agent, i.e. test navigator.userAgent.

If the user fakes this they are not due concern. If you test.isUnix() you should not subsequently have to worry if the system is Unix.

As a user changing userAgent is also fine, but you don't expect sites to render properly if you do.

If you wish to provide support for Microsoft browsers you should ensure the first few characters of the content includes and test every page you write.

Bottom line... Always code to the standards. Then hack it until it works in the current version of IE & don't expect it to look good. That's what GitHub does, and they just got given 100 million bucks.

Upvotes: -5

Mickey

Reputation: 55

I do this for my .NET applications.

In my shared _Layout.cshtml Page, I add this.

@{
    var isMobileDevice = HttpContext.Current.Request.Browser.IsMobileDevice;
}

<html lang="en" class="@((isMobileDevice)?"ismobiledevice":"")">

Then to check on any page in your site (jQuery):

<script>
var isMobile = $('html').hasClass('ismobiledevice');
</script>

Upvotes: -2

Mark

Reputation: 689

If found that just checking navigator.userAgent isn't always reliable. Greater reliability can be achieved by also checking navigator.platform. A simple modification to a previous answer seems to work better:

if (/Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.userAgent) ||
   (/Android|webOS|iPhone|iPad|iPod|BlackBerry/i.test(navigator.platform))) {
    // some code...
}

Upvotes: 12

Gor

Reputation: 1435

Here is one more suggestion implemented with pure JavaScript (es6)

const detectDeviceType = () =>
    /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)
        ? 'Mobile'
        : 'Desktop';

detectDeviceType();

Upvotes: 0

Vishnu Prasanth Gangisetty

Reputation: 1233

<script>
  function checkIsMobile(){
      if(navigator.userAgent.indexOf("Mobile") > 0){
        return true;
      }else{
        return false;
      }
   }
</script>

If you goto any browser and if you try to get navigator.userAgent then we'll be getting the browser information something like following

Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36

The same thing if you do in mobile you'll be getting following

Mozilla/5.0 (Linux; Android 8.1.0; Pixel Build/OPP6.171019.012) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.98 Mobile Safari/537.36

Every mobile browser will have useragent with string containing "Mobile" So I'm using above snippet in my code to check whether current user agent is web/mobile. Based on the result I'll be doing required changes.

Upvotes: 5

How to detect a mobile device using jQuery

Answers (30)

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