Uncaught ReferenceError is not defined

Question

I am getting this error message when trying to create a JQuery image slider       Uncaught ReferenceError   is not defined   Here is my NEW coding  NOTE that I have moved the script to the  of the page  this was suggested by adobe       lt  doctype html gt   lt html gt    lt head gt   lt meta charset  utf-8  gt   lt title gt Green Cold-Formed Steel   Home lt  title gt   lt style type  text css  gt   body td th       font-family  Tahoma  Geneva  sans-serif      font-size  10px      color   000      text-align  left    body       background-color   999    a link       color   999      text-decoration  none    a visited       text-decoration  none      color   060    a hover       text-decoration  underline      color   FFF    a active       text-decoration  none    h1       font-size  14px      color   060    h2       font-size  12px      color   999    h3       font-size  9px      color   FFF     next       background-image  url Assets slideshow r arrow png       background-repeat  no-repeat      background-position  center center      display  block      float  right      height  500px      width  100px      position  relative      z-index  99     slideshowwrapper       display  block      height  500px      width  1000px      margin  auto     container       background-color   FFC      display  block      float  left      height  500px      width  1000px      overflow  auto     prev       background-image  url Assets slideshow L arrow png       background-repeat  no-repeat      background-position  center center      display  block      float  left      height  500px      width  100px      position  relative      z-index  99     slider       display  block      float  left      height  500px      width  1000px      overflow  hidden      position  absolute     NavBar       display  block      height  50px      width  auto      position  relative      padding-bottom  5px      float  none      vertical-align  middle     lt  style gt   lt  head gt    lt body bgcolor   999999  text   000000  gt    lt table width  100   height  583  border  0  cellspacing  0  cellpadding  0px  gt     lt tr gt       lt th height  132  align  left  scope  col  gt  amp nbsp  lt  th gt       lt th scope  col  gt  lt div class  spacer  id  spacer  gt  lt  div gt         lt div class  Header  id  header  gt  lt a href  index html  gt  lt img src  Assets Logo GFCS Logo NoBckgnd png  width  288  height  108  alt  GCFS  gt  lt  a gt  lt  div gt       lt hr gt  lt  th gt       lt th scope  col  gt  amp nbsp  lt  th gt     lt  tr gt     lt tr gt       lt th width  5   align  left  scope  col  gt  amp nbsp  lt  th gt       lt td width  85   align  left  valign  top  scope  col  gt       lt div class  Navigation Bar  id  NavBar  gt  lt img src  Assets navigation navbutton static green png  width  100  height  50  alt  Navi Home  gt   lt img src  Assets navigation navbutton static green png  width  100  height  50  alt  Navi Solutions  gt   lt img src  Assets navigation navbutton down png  width  100  height  50  alt  navi down  gt  lt  div gt        lt div id  slideshowwrapper  gt         lt div id  container  gt           lt div class  controller  id  prev  gt  lt  div gt           lt div id  slider  gt               lt img src  Assets slideshow hyatt apts png  width  1000  height  500  alt             Hyatt Apartments  gt               lt img src  Assets slideshow mccommas png  width  1000  height  500  alt  McCommas  gt               lt img src  Assets slideshow park 4200 png  width  1000  height  500  alt  Park 4200  gt               lt img src  Assets slideshow quail run png  width  1000  height  500  alt  Quail Run  gt               lt img src  Assets slideshow roofdale png  width  1000  height  500  alt  Roofdale Roof  gt               lt img src  Assets slideshow tri truss png  width  1000  height  500  gt   lt  div gt           lt div class  controller  id  next  gt  lt  div gt         lt  div gt       lt  div gt  lt  td gt       lt th width  10   scope  col  gt  amp nbsp  lt  th gt     lt  tr gt   lt  table gt   lt p gt  amp nbsp  lt  p gt   lt script type  text javascript  src  JS jquery-1 10 1 min js  gt  lt  script gt   lt script type  text javascript  src  JS jquery cycle all js  gt  lt  script gt   lt script gt    function                slider   cycle            fx       scrollHorz            speed    fast             next      next            prev      prev                lt  script gt   lt  body gt   lt  html gt    My folder path to the JS folder for my website  locally  looks like this  C  Users Andrew Desktop GCFS JS  I am new to the coding world  but what I am trying to achieve is fairly simple  As far as I know I do not need to have a ready function and the javascript should run automatically   Thank you for your assistance    From comment  When I tried this it also failed   lt title gt Green Cold-Formed Steel   Home lt  title gt    lt script src    ajax googleapis com ajax libs jquery 1 10 1 jquery min js  gt  lt  script gt   lt script src  JS jquery cycle all js  gt  lt  script gt    lt script type  text javascript  gt      function              slider   cycle   fx   scrollHorz   speed   fast   next    next   prev    prev            lt  script gt

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As an addition   If you are using   Jquery  in your  js file   Logically all libs or frameworks should be before that  js file    lt script type  text javascript  src  jquery-2 1 3 min js  gt  lt  script gt   lt script type  text javascript  src  app js  gt  lt  script gt

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This can also happen  if there is network issue  Which means  that even though the   jquery scripts   are in place  and are included prior to usage  since the jquery-scripts are not accessible  at the time of loading the page  hence the definitions to the     are treated as  undefined references    FOR TEST DEBUG PURPOSES    You can try to access the  jquery-script  url on browser  If it is accessible  your page  should load properly  else it will show the said error  or other script relevant errors   Example - http   ajax googleapis com ajax libs jquery 1 7 2 jquery min js should be accessible  on the browser  or browser context stances    I had similar problem  in which I was able to load the html-page  using scripts  in my windows-host-browser  but was not able to load in vm-ubuntu  Solving the network issue  got the issue resolved

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2 issues   Looks like your jQuery was not loaded properly   You generally see this error  Uncaught ReferenceError   is not defined   when jQuery was not properly included on your page   Try using jQuery from CDN and it should solve your problem  Replace    lt script src  JS jquery-1 10 1 min js  gt  lt  script gt    with the one from cdn   lt script src    ajax googleapis com ajax libs jquery 1 10 1 jquery min js  gt  lt  script gt    NOTE  if you test from file system  you need to add the http  to the above URL or it will fail  Next your script file is before the HTML   So need to contain the code in DOM Ready handler     function             slider   cycle            fx       scrollHorz            speed    fast            next      next            prev      prev                    As far as I know  Slider  was referenced when I created the div Id    No it is not  If your script was included just before the body   then you may not enclose it in the Ready handler  But in your case it is present in the head  So when the script starts running that particular element is still not present in the DOM  Check Fiddle

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Root problem is a ReferenceError   MDN indicates that a try catch block is the proper tool for the job  In my case  I was getting uncaught reference error for a payment sdk library  The below works for me   try     var stripe   Stripe  pk test ---------      catch  e        stripe   null     if stripe       we are good to go now     Obviously the fix is to load whatever SDK library  e g  jQuery  prior to calling its methods but the try catch does keep your shared JavaScript from barfing up errors in case you run that shared script on a page that doesn t load whatever library you use on a subset of pages

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document  ready function                       getJSON   lt  php echo site url  cadmin survey chart survey assisten      gt    function  json                         var acctregs   new Morris Donut                                      ID of the element in which to draw the chart                                  element   hadir-chart-bar-assisten                                      Chart data records -- each entry in this array corresponds to a point on                                    the chart                                  data  json                                  xkey   label                                   ykeys    value                                    labels    Nilai                                    barRatio  0 4                                  xLabelAngle  35                                  hideHover   auto                                   resize  true

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In my case i forgot to include this      lt script src   jquery-2 1 1 js  gt  lt  script gt    Earlier I was including just jquery-mobile which was causing this error

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Strange enough  my problem was coming from PHP   A REST API call was failing  and it was breaking the loading of the libraries afterwards  Since failure was from the REST call  it was not giving me a php compile error   Keep this as an option also  if loading jquery seems ok

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var     jQuery  jQuery document  ready function

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I had this issue  when I was browsing internet through my mobile hotspot  it was also compressing images and added the following script at the bottom of body tag    lt script language  javascript  gt  lt  -- bmi SafeAddOnload bmi load  bmi orig img     -- gt   lt  script gt    When I connected to proper wifi connection  all seems to work find for me  Hope this help someone

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You have not referenced a jQuery library    You ll need to include a line similar to this in your HTML    lt script src  https   ajax googleapis com ajax libs jquery 3 1 1 jquery min js  gt  lt  script gt

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put latest jquery cdn on top of your main html page Like If your main html page is index html place jquery cdn on top of this page like this  x000D   x000D   lt  DOCTYPE html gt   lt html gt   lt head gt   lt script src  https   ajax googleapis com ajax libs jquery 3 5 1 jquery min js  gt  lt  script gt   lt script gt    document  ready function         button   click function           h2   hide               lt  script gt   lt  head gt   lt body gt    lt h2 gt This will hide me lt  h2 gt     lt button gt Click me lt  button gt    lt  body gt   lt  html gt  x000D   x000D   x000D

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The solution   1  Use Google CDN to load jQuery   lt script type  text javascript  src  http   ajax googleapis com ajax libs jquery 1 5 jquery min js  gt  lt  script gt    2  As far as I know about the Cycle Plugin  It is compatible with jQuery v1 5-v1 7 because most of the methods were deprecated in jQuery 1 8    This is the reason I ve used v1 5 of Google CDN jquery in point 1  Most of the examples on cycle plugin use jquery 1 5   3  Clear Your browser cache  It is the main culprit most of the times   4  PLease check the loading of jquery using the code below  if typeof jQuery    undefined        console log  jQuery Loaded      else      console log  not loaded yet        Major Edit   The reason for the error is fairly simple   You have called the cycle method before the jquery is loaded   call cycle plugin on DOM ready       document  ready function            slider   cycle            fx       scrollHorz            speed    fast             next      next            prev      prev

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The error will occur in the following two scenarios as well     section scripts element is missing from the HTML file  Error in accessing DOM elements  For example accessing of DOM element is mentioned as    js-toggle   instead of     js-toggle    Actually the period is missing   So 3 things to be followed - check required scripts are added  check if it is added in the required order and third syntax errors in your Java Script

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Doh  I had mixed quotes in my  tags that caused the jquery reference to break   Doing an inspect in Chrome allowed me to see that the file wasn t properly linked

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In my case it was a typo  I forgot a backslash and was referencing the source incorrectly   Before src   scripts jquery js   After  nbsp  nbsp  src  scripts jquery js

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This is what solved it for me   Originally I went to Google and copied and pasted their suggested snippet for jQuery on their CDN page     lt script src    ajax googleapis com ajax libs jquery 1 9 1 jquery min js  gt  lt  script gt    The snippet does not include the HTTP  or HTTPS  in the src attribute but my browser  FireFox  needed it so I changed it to  edit  this worked for me with Google Chrome as well   lt script src  http   ajax googleapis com ajax libs jquery 1 9 1 jquery min js  gt  lt  script gt    Then it worked

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Bitten by this once again  missing library source links   Google Hosted Libraries Similar link

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if you are laraveling that error comes  on in blade files when you forgot to surround the code with    section  section name             endsection

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In my case  the problem has been solved after installing Windows Server Role Service  Static Content     OS   Windows Server 2008 R2    How to install the  Static Content  Server Role Service       Assuming that the  Web Server  Role is already installed     Run Server Manager   Click  Roles  in left pane   click  Add Role Services  in the  Web Server  area in right pane   select  Static Content  under  Web Server   Common HTTP Features    Click  Next

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I had this problem but the cause was very different to scenarios reported above  My site was working everywhere except on my older Android  2 2   Turned out this device was rejecting the https certificate at the code jquery com CDN  so it was not loading JQuery   The fix was to load JQuery resources from the https Google CDN instead  using URLs named by others above

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Add jQuery library before your script which uses   or jQuery so that   can be identified in scripts  remove tag script on head and put end bady   lt script src  quot http   code jquery com jquery-1 11 0 min js quot  gt  lt  script gt   then first write script in file js add   global        document  ready function

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You are calling the ready   function before the jQuery JavaScript is included  Reference jQuery first   If you re in ASP NET MVC  you can specify when your JS code should be rendered  by doing this    1  In your page cshtml wrap your  lt script gt  tag into a section  and give it a name  the common name to use is  scripts     section scripts        lt script gt             JS code         lt  script gt      2  In your  Layout cshtml page add  RenderSection  Scripts   required  false   make sure to put it after you reference the Jquery source  this will make your JS code render later than the Jquery

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I had a similar issue and it was because I was missing a closing   on a style sheet link

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The source file jquery-1 2 6 min js is not called the jQuery command     is executed earlier than  lt   src  jquery-1 2 6 min js  gt    Please run  lt    src   js jquery-1 2 6 min js    gt  at first and make sure the src path is right  then execute jquery command    document  ready function

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If your custom script is loaded before the jQuery plugin is loaded to the browser then this type of problem may occur  So  always keep your own JavaScript or jQuery code after calling the jQuery plugin so the solution for this is    First add the link to the jQuery file hosted at GoogleApis or a local jQuery file that you will download from http   jquery com download  and host on your server    lt script src    ajax googleapis com ajax libs jquery 1 9 1 jquery min js  gt  lt  script gt    or any plugin for jQuery  Then put your custom script file link or code    lt script src  js custom js  type  text javascript  gt  lt  script gt

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This happened to me before    The reason was that I m connecting android to a webview with a JS  And I sent a parameter without quotes   js sayHello hello     and when I changed it to   js sayHello  hello      it worked

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I had the exact same problem and none of these solutions above helped  however  I just linked the  css files after the  js files and the problem miraculously disappeared  Hope this helps

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In my case I was putting my  js file before the jQuery script link  putting the  js file after jQuery script link solved my issue    lt script src  http   code jquery com jquery-1 10 2 js  gt  lt  script gt   lt script src  http   code jquery com ui 1 11 2 jquery-ui js  gt  lt  script gt   lt script src  http   maxcdn bootstrapcdn com bootstrap 3 2 0 js bootstrap min js  gt  lt  script gt   lt script src  exponential js  gt  lt  script gt

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I modified the script tag to point to the right content and changed the script order to be the right one in the editor  But totally forgot to save the change

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If it s in wordpress  might be needed to change     document  ready function       to  jQuery document  ready function       or add  var     jQuery    before    document  ready function

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Add the library before you start the script You can add any of these following CDN to start it   Google    lt script src  https   ajax googleapis com ajax libs jquery 3 2 1 jquery min js  gt  lt  script gt    Microsoft   lt script src  https   ajax aspnetcdn com ajax jQuery jquery-3 2 1 min js  gt  lt  script gt    Jquery  If you want any other Jquery cdn version check this link   After this    lt script type  text javascript  gt    function          your stuff     or   document  ready function          your stuff          lt  script gt    Wordpress    lt script type  text javascript  gt  var     jQuery  jQuery document  ready function            your stuff      lt  script gt

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There might be two issues   1  The JQuery might not have got loaded properly   You could test it using Chrome  Key in   or jQuery to check if it is loaded properly    2  This is based on my experience in some JQuery js which would have got bundled with other JS libraries  where   will not be supported and you are forced to use jQuery instead of   Check out for the below line in the js file that you have loaded in your project   window jQuery   window     jQuery    I see that by using http   ajax googleapis com ajax libs jquery 1 10 1 jquery min js didn t work for me but I used http   code jquery com jquery-1 7 2 min js  Below is the only part in your code that I edited and it started working fine for me    lt script type  text javascript  src  http   code jquery com jquery-1 7 2 min js  gt  lt  script gt

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You need to call jquery first and then call javascript as java script depends on jquery  so it should be loaded before javascript and this solved my problem

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I had this problem when tried to run different web-socket samples   When pointing browser to  http   localhost 8080   I got this error  but pointing exactly to  http   localhost 8080 index html  gave no error since in  index html  all was fully ok - jquery was included before using      Somehow autoforwarding to index html not fully worked

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lt script src  https   ajax googleapis com ajax libs jquery 2 1 4 jquery min js  gt  lt  script gt   lt script type  text javascript  src  local xxx js  gt  lt  script gt    I have similar issue  and you know what  it s because of network is disconnected when I test in android device webview and I don t realize it  and the local js no problem to load because it doesn t need network  It seems ridiculous but it waste my  1 hour to figure out it

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This probably happens  when you forget to include your jQuery CDN or local path

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If you are doing this in  Net and have the script file referenced properly and you jQuery looks fine  make sure that your users have access to the script file  The project I was working on  a coworker  had their web config denying access to anonymous users  The page I was working on was accessible to anonymous users therefore they didn t have access to the script file  Dropped the following into the web config and all was right in the world      lt location path  Scripts  gt       lt system web gt         lt authorization gt           lt allow users      gt         lt  authorization gt       lt  system web gt     lt  location gt

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You should put the references to the jquery scripts first     lt script language  JavaScript  type  text javascript  src   js jquery-1 2 6 min js  gt  lt  script gt   lt script language  JavaScript  type  text javascript  src   js jquery-ui-personalized-1 5 2 packed js  gt  lt  script gt   lt script language  JavaScript  type  text javascript  src   js sprinkle js  gt  lt  script gt

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You are calling the ready function before the jQuery JavaScript is included  Reference jQuery first

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I had similar issue   My test server was working fine with   http   However it failed in production which had SSL   Thus in production  I added  HTPPS  instead of  HTTP  and in test  i kept as it is   HTTP    Test   wp register script   jquery    http   ajax googleapis com ajax libs jquery 1 11 2 jquery min js   array    null  false     wp register script   custom-script   plugins url    js custom js     FILE      array   jquery         Production   wp register script   jquery    https   ajax googleapis com ajax libs jquery 1 11 2 jquery min js   array    null  false     wp register script   custom-script   plugins url    js custom js     FILE      array   jquery         Hope this will help someone who is working on wordpress

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Here is the worst case    Everything seemed perfect  After spending a couple of hours I realized that the jquery file which is added in the correct position was actually a file with empty content

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Your JavaScript file is missing so this error occurred  Just add the JavaScript file inside the  lt head gt  tag  See the example    lt script src  js sample js  type  text javascript  gt  lt  script gt   lt link href  css sample css  rel  stylesheet  type  text css    gt    or add the following code in  tag     lt script src  http   ajax googleapis com ajax libs jquery 1 9 1 jquery min js  gt  lt  script gt

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Okay  my problem was different - it was Document Security model in Chrome   Looking at the answers here  it was obvious that I was somehow not loading my jquery files before calling the   document  ready   etc  functions  However  they were all in the correct positions   In my case  this was because I was accessing the content over a secure HTTPS connection  whereas the page was trying to download the CDN hosted data from google  etc  The solution was to store them locally and then include then directly rather than from the CDN each time   Edit  The other way of doing this is to link to all the CDN-hosted stuff as https    rather than http    - then the model doesn t complain

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In my case I had this referenceError as the order of script calls was wrong  Solved that by changing the order    lt script src  js index js  gt  lt  script gt   lt script src  js jquery-1 10 2 js  gt  lt  script gt    to   lt script src  js jquery-1 10 2 js  gt  lt  script gt   lt script src  js index js  gt  lt  script gt

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I wanted to try to make my script asynchronous  Then I forgot about it and when I went live the  custom  js file only loaded 50  of the time before the jQuery js   So I changed    lt script async src  js script js  gt  lt  script gt    to    lt script src  js script js  gt  lt  script gt

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I had the same problem   and I solved by putting jQuery at the top of all javascript codes I have in my code   Something like this    lt script src  https   code jquery com jquery-3 3 1 js  gt  lt  script gt   lt script src  https   maxcdn bootstrapcdn com bootstrap 4 0 0 js bootstrap min js  gt  lt  script gt   lt script src  js app js  type  text javascript  gt  lt  script gt   lt script src  js form js  type  text javascript  gt  lt  script gt   lt script src  js create js  type  text javascript  gt  lt  script gt   lt script src  js tween js  type  text javascript  gt  lt  script gt    Hope can help some one in future

[javascript] Uncaught ReferenceError: $ is not defined

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