Uncaught TypeError data push is not a function

Question

I am trying to push   data push   country    IN       as new id and value to a json string  but it gives the following error  Uncaught TypeError  data push is not a function  data  name   ananta   age   15     Advance Thanks for your reply

User · Answer

make sure you push into an Array only and if their is error like Uncaught TypeError  data push is not a function   then check for type of data you can do this by consol log data  hope this will help

User · Answer

I think you set it as var data         but after some time you made it like  data    some thing which is not an array     then data push     will not work as it is not an array anymore

User · Answer

Try This Code  scope DSRListGrid data   data  this one for source data               for  var prop in data 0                     if  data 0  hasOwnProperty prop                          scope ListColumns push                                                                 name   prop                                   field   prop                                   width   150                                   headerCellClass    font-12                                                                                                   console log  scope ListColumns

User · Answer

one things to remember push work only with array   not object    if you want to add  Like object o inside inside n   x000D   x000D  a   b  c   D  e   F   g  h   I  j   k   l  m        a F k n     o   p     a F k n     o   p     console log a   x000D   x000D   x000D

User · Answer

you can use push method only if the object is an array   var data   new Array    data push   country    IN       OR  data  country      IN    if it s just an object you can use  data country    IN

User · Answer

To use the push function of an Array your var needs to be an Array   Change data  name   ananta   age   15   to following   var data                     name    ananta            age    15            country    Atlanta            data push   name    Tony Montana    age    99      data push   country    IN           The containing Array Items will be typeof Object and you can do following   var text    You are     data 0 - gt age     old and come from     data 0 - gt country   Notice  Try to be consistent  In my example  one array contained object properties name and age while the other only contains country  If I iterate this with for or forEach then I can t always check for one property  because my example contains Items that changing   Perfect would be  data push    name    Max    age    5    country    Anywhere        So you can iterate and always can get the properties  even if they are empty  null or undefined   edit  Cool stuff to know   var array   new Array      is similar to   var array         Also   var object   new Object      is similar to   var object         You also can combine them   var objectArray

User · Answer

Your data variable contains an object  not an array  and objects do not have the push function as the error states  To do what you need you can do this   data country    IN     Or  data  country      IN

User · Answer

Also make sure that the name of the variable is not some kind of a language keyword  For instance  the following produces the same type of error   var history       history push  what a mess      replacing it for   var history123       history123 push  pray for a better language      works as expected

[javascript] Uncaught TypeError: data.push is not a function

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