Maximum call stack size exceeded error

Question

I am using a Direct Web Remoting  DWR  JavaScript library file and am getting an error only in Safari  desktop and iPad   It says      Maximum call stack size exceeded    What exactly does this error mean and does it stop processing completely   Also any fix for Safari browser  Actually on the iPad Safari  it says      JS execution exceeded timeout   which I am assuming is the same call stack issue

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In my case  I was converting a large byte array into a string using the following   String fromCharCode apply null  new Uint16Array bytes     bytes contained several million entries  which is too big to fit on the stack

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I had this error because I had two JS Functions with the same name

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In my case  I was sending input elements instead of their values     post       registerName      registerName         Instead of     post       registerName      registerName   val         This froze my Chrome tab to a point it didn t even show me the  Wait Kill  dialog for when the page became unresponsive

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Check the error details in the Chrome dev toolbar console  this will give you the functions in the call stack  and guide you towards the recursion that s causing the error

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In my case  I basically forget to get the value of input  Wrong let name document getElementById  name    param   quot name quot  name   Correct let name document getElementById  name   value  param   quot name quot  name

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It means that somewhere in your code  you are calling a function which in turn calls another function and so forth  until you hit the call stack limit  This is almost always because of a recursive function with a base case that isn t being met  Viewing the stack Consider this code     function a         a           Here is the stack after a handful of calls     As you can see  the call stack grows until it hits a limit  the browser hardcoded stack size or memory exhaustion  In order to fix it  ensure that your recursive function has a base case which is able to be met     function a x           The following condition         is the base case      if     x            return            a --x      10

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The issue in my case is because I have children route with same path with the parent    const routes  Routes             path          component  HomeComponent      children            path      redirectTo   home   pathMatch   prefix             path   home   loadChildren     home module HomeModule                    So I had to remove the line of the children route  const routes  Routes             path          component  HomeComponent      children            path   home   loadChildren     home module HomeModule

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There is a recursive loop somewhere in your code  i e  a function that eventually calls itself again and again until the stack is full    Other browsers either have bigger stacks  so you get a timeout instead  or they swallow the error for some reason  maybe a badly placed try-catch    Use the debugger to check the call stack when the error happens

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Have come accross the same issue  coulnd t figured out what s wrong started blaming Babel     Having code not returning any exception in browsers     if  typeof document body onpointerdown       undefined     null       issue was badly created     or  part as babel creates its own type check   function  typeof obj  if typeof Symbol    function  amp  amp  typeof Symbol iterator     symbol     so removing      null   made babel transpilation worked

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I was trying to assign a variable  a value  when that variable had not been declared   Declaring the variable fixed my error

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Check if you have a function that calls itself  For example   export default class DateUtils     static now       Date   gt        return DateUtils now

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in my case I m getting this error on ajax call and the data I tried to pass that variable haven t defined  that is showing me this error but not describing that variable not defined  I added defined that variable n got value

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In my case  click event was propagating on child element  So  I had to put the following      e stopPropagation     on click event      document  on  click     remove-discount-button   function  e               e stopPropagation                 some code                document  on  click     current-code   function               remove-discount-button   trigger  click           Here is the html code     lt div class  current-code  gt                                               lt input type  submit  name  removediscountcouponcode  value   title  Remove  class  remove-discount-button  gt      lt  div gt

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I got this error in express nodejs app  when the schema of MongoDB database and the models which we have created don t match

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In my case  I by mistake i have assigned same variable name   and to val function  class routine id    var class routine id       class routine id   val class routine id     it should be Like      var class routine id       class routine id   val

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Both invocations of the identical code below if decreased by 1 work in Chrome 32 on my computer e g  17905 vs 17904  If run as is they will produce the error  RangeError  Maximum call stack size exceeded   It appears to be this limit is not hardcoded but dependant on the hardware of your machine  It does appear that if invoked as a function this self-imposed limit is higher than if invoked as a method i e  this particular code uses less memory when invoked as a function   Invoked as a method   var ninja         chirp  function n            return n  gt  1   ninja chirp n-1     -chirp     chirp             ninja chirp 17905     Invoked as a function   function chirp n        return n  gt  1   chirp  n - 1      -chirp     chirp      chirp 20889

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For me as a beginner in TypeScript  it was a problem in the getter and the setter of  var1  class Point2           constructor private  var1   number  private y   number         set var1 num  number           this  var1   num     problem was here  it was this var1   num           get var1            return this  var1    this was return this var1

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If you are working with google maps  then check if the lat lng are being passed into new google maps LatLng are of a proper format  In my case they were being passed as undefined

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I am using React-Native 0 61 5 along with  npm 6 9 0  amp  node 10 16 1   While I am install any new libraries in Project I got an of    e g  npm install  react-navigation native --save   Maximum call stack size exceeded error  for that  I try   sudo npm cache clean --force   Note - Below command usually take time 1 to 2 minutes depending on your npm cache size

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Nearly every answer here states that this can only be caused by an infinite loop  That s not true  you could otherwise over-run the stack through deeply nested calls  not to say that s efficient  but it s certainly in the realm of possible   If you have control of your JavaScript VM  you can adjust the stack size  For example   node --stack-size 2000  See also  How can I increase the maximum call stack size in Node js

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You can sometimes get this if you accidentally import embed the same JavaScript file twice  worth checking in your resources tab of the inspector

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If you need a infinite process recursion running for some reason  you can use a webworker in a seperate thread  http   www html5rocks com en tutorials workers basics   if you want to manipulate dom elements and redraw  use animation http   creativejs com resources requestanimationframe

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We recently added a field to an admin site we are working on - contact type    easy right  Well  if you call the select  type  and try to send that through a jquery ajax call it fails with this error buried deep in jquery js Don t do this     ajax       dataType   json       type   POST       url    some function php       data    contact uid contact uid  type type         The problem is that type type - I believe it is us naming the argument  type  - having a value variable named type isn t the problem  We changed this to     ajax       dataType   json       type   POST       url    some function php       data    contact uid contact uid  contact type type         And rewrote some function php accordingly - problem solved

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you can find your recursive function in crome browser press ctrl shift j and then source tab  which gives you code compilation flow and you can find using break point in code

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I also faced similar issue here is the details  when uploading logo using dropdown logo upload box   lt div gt         lt div class  uploader greyLogoBox  id  uploader  flex  64  onclick      filePhoto   click    gt           lt img id  imageBox  src      ctrl companyLogoUrl     alt     gt           lt input type  file  name  userprofile picture   id  filePhoto  ngf-select   ctrl createUploadLogoRequest     gt           lt md-icon ng-if    ctrl isLogoPresent  class  upload-icon  md-font-set  material-icons  gt cloud upload lt  md-icon gt           lt div ng-if    ctrl isLogoPresent  class  text  gt Drag and drop a file here  or click to upload lt  div gt         lt  div gt         lt script type  text javascript  gt            var imageLoader   document getElementById  filePhoto              imageLoader addEventListener  change   handleImage  false              function handleImage e                  var reader   new FileReader                  reader onload   function  event                           uploader img   attr  src  event target result                                 reader readAsDataURL e target files 0                       lt  script gt         lt  div gt    CSS css   uploader     position relative    overflow hidden    height 100px    max-width  75     margin  auto    text-align  center     img      max-width  464px      max-height  100px      z-index 1      border none          drag-drop-zone       background  rgba 0  0  0  0 04       border  1px solid rgba 0  0  0  0 12       padding  32px          uploader img    max-width  464px    max-height  100px    z-index 1    border none        greyLogoBox     width  100     background   EBEBEB    border  1px solid  D7D7D7    text-align  center    height  100px    padding-top  22px    box-sizing  border-box       filePhoto    position absolute    width 464px    height 100px    left 0    top 0    z-index 2    opacity 0    cursor pointer      before correction my code was    function handleImage e                  var reader   new FileReader                  reader onload   function  event                      onclick      filePhoto   click                          uploader img   attr  src  event target result                                 reader readAsDataURL e target files 0                  The error in console      I solved it by removing onclick      filePhoto   click    from div tag

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Sometimes happened because of convert data type   for example you have an object that you considered as string   socket id in nodejs either in js client as example  is not a string  to use it as string you have to add the word String before   String socket id

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The problem with detecting stackoverflows is sometimes the stack trace will unwind and you won t be able to see what s actually going on   I ve found some of Chrome s newer debugging tools useful for this   Hit the Performance tab  make sure Javascript samples are enabled and you ll get something like this   It s pretty obvious where the overflow is here  If you click on extendObject you ll be able to actually see the exact line number in the code      You can also see timings which may or may not be helpful or a red herring       Another useful trick if you can t actually find the problem is to put lots of console log statements where you think the problem is  The previous step above can help you with this   In Chrome if you repeatedly output identical data it will display it like this showing where the problem is more clearly  In this instance the stack hit 7152 frames before it finally crashed

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in Angular  if you re using mat-select and have 400  options  this error may occur https   github com angular components issues 12504  you have to update  angular material version

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I know this thread is old  but i think it s worth mentioning the scenario i found this problem so it can help others   Suppose you have nested elements like this    lt a href     id  profile-avatar-picker  gt       lt span class  fa fa-camera fa-2x  gt  lt  span gt       lt input id  avatar-file  name  avatar-file  type  file  style  display  none     gt   lt  a gt    You cannot manipulate the child element events inside the event of its parent because it propagates to itself  making recursive calls until the exception is throwed   So this code will fail       profile-avatar-picker   on  click    e    gt        e preventDefault             profilePictureFile   trigger  click          You have two options to avoid this    Move the child to the outside of the parent  Apply stopPropagation function to the child element

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In my case  two jQuery modals were showing stacked on top of each other  Preventing that solved my problem

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This can also cause a Maximum call stack size exceeded error   var items          push apply items  new Array 1000000      Bad   Same here   items push    new Array 1000000      Bad   From the Mozilla Docs      But beware  in using apply this way  you run the risk of exceeding the   JavaScript engine s argument length limit  The consequences of   applying a function with too many arguments  think more than tens of   thousands of arguments  vary across engines  JavaScriptCore has   hard-coded argument limit of 65536   because the limit  indeed even   the nature of any excessively-large-stack behavior  is unspecified    Some engines will throw an exception  More perniciously  others will   arbitrarily limit the number of arguments actually passed to the   applied function  To illustrate this latter case  if such an engine   had a limit of four arguments  actual limits are of course   significantly higher   it would be as if the arguments 5  6  2  3 had   been passed to apply in the examples above  rather than the full   array    So try   var items       var newItems   new Array 1000000   for var i   0  i  lt  newItems length  i       items push newItems i

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I was facing same issue I have resolved it by removing a field name which was used twice on ajax  e g      jQuery ajax       url     search-result       data           searchField   searchField        searchFieldValue   searchField        nid       nid        indexName   indexName        indexType   indexType

[javascript] Maximum call stack size exceeded error

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