How do I get the total Json record count using JQuery

Question

I couldn t find anything about getting the total JSON record count using jQuery   Here is the JSON returned     Email   Please enter your Email    Password   Please enter a password     Here is my code     function             btnSubmit   click function               ajax               url    account signup               type   POST               dataType   json               data                     Email      strEmail   val                    Password      strPassword   val                              success  function j                            errMsg   hide                        alert j length      I couldn t get the total count                   each j  function n                            err    n  html j n                            err    n  show                                                   error  function req  status  error                    alert req

User · Answer

Your json isn t an array  it hasn t length property   You must change your data return or the way you get your data count

User · Answer

The OP is trying to count the number of properties in a JSON object  This could be done with an incremented temp variable in the iterator  but he seems to want to know the count before the iteration begins  A simple function that meets the need is provided at the bottom of this page   Here s a cut and paste of the code  which worked for me   function countProperties obj      var prop    var propCount   0     for  prop in obj        propCount          return propCount      This should work well for a JSON object  For other objects  which may derive properties from their prototype chain  you would need to add a hasOwnProperty   test

User · Answer

The OP is trying to count the number of properties in a JSON object  This could be done with an incremented temp variable in the iterator  but he seems to want to know the count before the iteration begins  A simple function that meets the need is provided at the bottom of this page   Here s a cut and paste of the code  which worked for me   function countProperties obj      var prop    var propCount   0     for  prop in obj        propCount          return propCount      This should work well for a JSON object  For other objects  which may derive properties from their prototype chain  you would need to add a hasOwnProperty   test

User · Answer

If you have something like this   var json      a b  c d    e f  g h                      then  you can do   alert json length

User · Answer

Your json isn t an array  it hasn t length property   You must change your data return or the way you get your data count

User · Answer

Why would you want length in this case   If you do want to check for length  have the server return a JSON array with key-value pairs like this        key value      key value      In JSON    and   represents an array  with a length property     and   represents a object  without a length property   You can iterate through the members of a object  but you will get functions as well  making a length check of the numbers of members useless except for iterating over them

User · Answer

Why would you want length in this case   If you do want to check for length  have the server return a JSON array with key-value pairs like this        key value      key value      In JSON    and   represents an array  with a length property     and   represents a object  without a length property   You can iterate through the members of a object  but you will get functions as well  making a length check of the numbers of members useless except for iterating over them

User · Answer

If you have something like this   var json      a b  c d    e f  g h                      then  you can do   alert json length

User · Answer

If you have something like this   var json      a b  c d    e f  g h                      then  you can do   alert json length

User · Answer

Your json isn t an array  it hasn t length property   You must change your data return or the way you get your data count

User · Answer

Why would you want length in this case   If you do want to check for length  have the server return a JSON array with key-value pairs like this        key value      key value      In JSON    and   represents an array  with a length property     and   represents a object  without a length property   You can iterate through the members of a object  but you will get functions as well  making a length check of the numbers of members useless except for iterating over them

User · Answer

Perhaps you might want to try JSON parse your return result first then you can get the count by  length

User · Answer

Try the following   var count Object keys result  length    Does not work IE8 and lower

User · Answer

What you re looking for is   j d length   The d is the key  At least it is in my case  I m using a  NET webservice      ajax               type   POST               url   CantTellU asmx               data     userID        parseInt   query get  ID                        contentType   application json  charset utf-8               dataType   json               success  function msg  status                    ApplyTemplate msg                   alert msg d length

User · Answer

Your json isn t an array  it hasn t length property   You must change your data return or the way you get your data count

User · Answer

Perhaps you might want to try JSON parse your return result first then you can get the count by  length

User · Answer

Try the following   var count Object keys result  length    Does not work IE8 and lower

User · Answer

What you re looking for is   j d length   The d is the key  At least it is in my case  I m using a  NET webservice      ajax               type   POST               url   CantTellU asmx               data     userID        parseInt   query get  ID                        contentType   application json  charset utf-8               dataType   json               success  function msg  status                    ApplyTemplate msg                   alert msg d length

User · Answer

Why would you want length in this case   If you do want to check for length  have the server return a JSON array with key-value pairs like this        key value      key value      In JSON    and   represents an array  with a length property     and   represents a object  without a length property   You can iterate through the members of a object  but you will get functions as well  making a length check of the numbers of members useless except for iterating over them

User · Answer

If you have something like this   var json      a b  c d    e f  g h                      then  you can do   alert json length

[jquery] How do I get the total Json record count using JQuery?

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