Is it possible to set async false to getJSON call

Question

Is it possible to set async  false when calling   getJSON   so that the call blocks rather than being asynchronous

User · Answer

Roll your own e g   function syncJSON i url  callback        ajax       type   POST       async  false      url  i url      contentType   application json       dataType   json       success  function  msg    callback msg         error  function  msg    alert  error       msg d              syncJSON   pathToYourResouce   function  msg       console log msg

User · Answer

I think you both are right  The later answer works fine but its like setting a global option so you have to do the following         ajaxSetup           async  false                ajax call here        ajaxSetup           async  true

User · Answer

You need to make the call using   ajax   to it synchronously  like this     ajax     url  myUrl    dataType   json     async  false    data  myData    success  function data          stuff                     This would match currently using   getJSON   like this     getJSON myUrl  myData  function data         stuff

User · Answer

Both answers are wrong  You can  You need to call       ajaxSetup   async  false       before your json ajax call  And you can set it to true after call retuns   if there are other usages of ajax on page if you want them async

User · Answer

In my case  Jay D is right  I have to add this before the call     ajaxSetup       async  false       In my previous code  I have this   var jsonData   function         var result        ajax           type  GET           url  data txt           dataType  json           async false          success function data               result   data                        return result        alert JSON stringify jsonData      It works find  Then I change to  var jsonData   function         var result        getJSON  data txt       function data         result   data              return result        alert JSON stringify jsonData      The alert is undefined   If I add those three lines  the alert shows the data again     ajaxSetup       async  false     var jsonData   function         var result        getJSON  data txt       function data         result   data              return result        alert JSON stringify jsonData

User · Answer

I don t think you can set that option there  You will have to use jQuery ajax   with the appropriate parameters  basically getJSON just wraps that call into an easier API  as well

User · Answer

If you just need to await to avoid nesting code   let json  await new Promise done   gt    getJSON  https         async function  data        json   data      done

[jquery] Is it possible to set async:false to $.getJSON call

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