Jquery checking success of ajax post

Question

how do i define the success and failure function of an ajax   post

User · Answer

This style is also possible     get  mypage html        done function result           alert  done  read   result length   characters                 fail function jqXHR  textStatus  errorThrown           alert  fail  status    textStatus

User · Answer

The documentation is here  http   docs jquery com Ajax jQuery ajax  But  to summarize  the ajax call takes a bunch of options   the ones you are looking for are error and success   You would call it like this     ajax     url   mypage html     success  function        alert  success           error  function        alert  failure              I have shown the success and error function taking no arguments  but they can receive arguments   The error function can take three arguments  XMLHttpRequest  textStatus  and errorThrown   The success function can take two arguments  data and textStatus   The page you requested will be in the data argument

User · Answer

If you need a failure function  you can t use the   get or   post functions  you will need to call the   ajax function directly  You pass an options object that can have  success  and  error  callbacks   Instead of this     post   post url php   parameters  successFunction     you would use this     ajax       url    post url php       type   POST       data  parameters      success  successFunction      error  errorFunction       There are lots of other options available too  The documentation lists all the options available

User · Answer

using jQuery 1 8 and above  should use the following   var request     ajax       type   POST       url   mmm php       data    abc   abcdefghijklmnopqrstuvwxyz            done function data    alert  success  data slice 0  100            fail function     alert  error            always function     alert  complete          check out the docs as  hitautodestruct stated

User · Answer

I was wondering  why they didnt provide in jquery itself  so i made a few changes in jquery file     here are the changed code block   original Code block       post  function  url  data  callback  type            shift arguments if data argument was omited     if   jQuery isFunction  data               type   type    callback          callback   data          data                  return jQuery ajax           type   POST           url  url          data  data          success  callback          dataType  type             Changed Code block           post  function  url  data  callback  failcallback  type            if  type     undefined    type     null                if   jQuery isFunction failcallback                  type failcallback                   else if   jQuery isFunction callback                 type   callback                             if  jQuery isFunction data   amp  amp  jQuery isFunction callback                 failcallback   callback                        shift arguments if data argument was omited         if  jQuery isFunction data                 type   type    callback              callback   data              data                            return jQuery ajax               type   POST               url  url              data  data              success  callback              error failcallback              dataType  type                      This should help the one trying to catch error on   Post in jquery   Updated  Or there is another way to do this is         post url    function res             To do write if call is successful       error function p1 p2 p3                  To do Write if call is failed

[jquery] Jquery checking success of ajax post

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