How to trigger the window resize event in JavaScript

Question

I have registered a trigger on window resize  I want to know how I can trigger the event to be called  For example  when hide a div  I want my trigger function to be called   I found window resizeTo   can trigger the function  but is there any other solution

User · Answer

With jQuery  you can try to call trigger     window  trigger  resize

User · Answer

Response with RxJS  Say Like something in Angular  size   Observable lt number gt    fromEvent window   resize   pipe              debounceTime 250               throttleTime 300               mergeMap      gt  of document body clientHeight                distinctUntilChanged                startWith document body clientHeight                  If manual subscription desired  Or Not Angular   this size  subscribe  g    gt          console log  clientHeight   g            Since my intial startWith Value might be incorrect  dispatch for correction   window dispatchEvent new Event  resize       In say Angular  I could      lt div class  iframe-container    style height px   size    async   gt

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A pure JS that also works on IE  from  Manfred comment   var evt   window document createEvent  UIEvents     evt initUIEvent  resize   true  false  window  0    window dispatchEvent evt     Or for angular    timeout function         var evt    window document createEvent  UIEvents         evt initUIEvent  resize   true  false   window  0         window dispatchEvent evt

User · Answer

Where possible  I prefer to call the function rather than dispatch an event  This works well if you have control over the code you want to run  but see below for cases where you don t own the code  window onresize   doALoadOfStuff   function doALoadOfStuff           do a load of stuff    In this example  you can call the doALoadOfStuff function without dispatching an event  In your modern browsers  you can trigger the event using  window dispatchEvent new Event  resize      This doesn t work in Internet Explorer  where you ll have to do the longhand  var resizeEvent   window document createEvent  UIEvents     resizeEvent initUIEvent  resize   true  false  window  0    window dispatchEvent resizeEvent    jQuery has the trigger method  which works like this    window  trigger  resize     And has the caveat   Although  trigger   simulates an event activation  complete with a synthesized event object  it does not perfectly replicate a naturally-occurring event   You can also simulate events on a specific element    function simulateClick id      var event   new MouseEvent  click          view   window       bubbles   true       cancelable   true          var elem   document getElementById id       return elem dispatchEvent event

User · Answer

I believe this should work for all browsers   var event  if  typeof  Event       function         event   new Event  resize      else     IE       event   document createEvent  Event        event initEvent  resize   true  true     window dispatchEvent event

User · Answer

window dispatchEvent new Event  resize

User · Answer

just    window  resize      is what I use    unless I misunderstand what you re asking for

User · Answer

window resizeBy   will trigger window s onresize event  This works in both Javascript or VBScript   window resizeBy xDelta  yDelta  called like window resizeBy -200  -200  to shrink page 200px by 200px

User · Answer

I wasn t actually able to get this to work with any of the above solutions  Once I bound the event with jQuery then it worked fine as below     window  bind  resize   function          resizeElements       trigger  resize

User · Answer

Combining pomber s and avetisk s answers to cover all browsers and not causing warnings   if  typeof Event       function          modern browsers   window dispatchEvent new Event  resize       else        for IE and other old browsers      causes deprecation warning on modern browsers   var evt   window document createEvent  UIEvents       evt initUIEvent  resize   true  false  window  0      window dispatchEvent evt

User · Answer

You can do this with this library  https   github com itmor events-js  const events   new Events     events add       blockIsHidden       gt         if     div   css  display        none   return true           function printText        console log  The block has become hidden        events on  blockIsHidden   printText

[javascript] How to trigger the window resize event in JavaScript?

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