count number of object in an array angular js

Question

This is what I did.

$scope.data.months = [];    
angular.forEach(response, function (value, key) {
      $scope.data.months.push({'month':value});
  });

console.log(response) is look like this

Array[3]
 0
 :
 "April 2017"
 1
 :
 "May 2017"
 2
 :
 "June 2017"

and console.log of months array result is look like this.

Array[0]
0 : Object
  month : "April 2017"
__proto__
:
Object
1 : Object
  month : "May 2017"
__proto__
:
Object
2 : Object
  month : "June 2017"
__proto__
:
Object

I have two question

-> First one is why it is showing Array[0] insist of Array[3] as there are three objects in this array.

-> Second one is how to count number of month I think if first one is solved then second one will be solved from first one.

I am newbie in angular js, What I am doing wrong please guide me through right direction.

what does array.lengh give you ($scope.data.months.length) at the point you log it? — Paul Thomas, Apr 05 '17 at 09:50
Could you tell what is the response ? I hope it is an array. — Rohan Kangale, Apr 05 '17 at 09:51
Also, could you tell where exactly you are writing the console.log — Rohan Kangale, Apr 05 '17 at 09:54
Array is having only 1 object and that object is having nested objects...Its showing the right output — Pramod Patil, Apr 05 '17 at 09:59
what should i need to do to get all three object in Array[object,object,object] — Ramkishan Suthar, Apr 05 '17 at 10:00
The response most probably is an array(array of objects), containing various objects. So the output is correct. — Rohan Kangale, Apr 05 '17 at 10:01
@Ramkishan : You need to traverse the array, in order to access the objects. You can do it either using "for" or "angular.forEach" functions. — Rohan Kangale, Apr 05 '17 at 10:02
I am not able to get desired result. even if i console.log($scope.data.months[0]), It is showing undefined. — Ramkishan Suthar, Apr 05 '17 at 10:12
First, please check the response. You can do that by writing console.log inside the forEach loop. Check the console i.e value. — Rohan Kangale, Apr 05 '17 at 10:28
I have already provided result of console.log(response) dear @rohankangale — Ramkishan Suthar, Apr 05 '17 at 10:32
As i told, write inside the forEach loop. You told that you have written outside the forEach loop. — Rohan Kangale, Apr 05 '17 at 10:35
Can you just try to do something like Object.keys(response).length? That should give you the # of months if they are unique. Are you using a nightly build of chrome? That looks like a bug to me, showing the incorrect number of results in an evaluated array — Mavi Domates, Apr 05 '17 at 10:59
Another thing is, if you're trying to just collect the names of the months you can use something simpler, I'm guessing there's a reason why you're using a key-value pair while inserting into the array. So just FYI you should be checking the names like months[0].month — Mavi Domates, Apr 05 '17 at 11:04
when i use months[0].month it throws error of undefined property of month i don't know why, Totally confused :( — Ramkishan Suthar, Apr 05 '17 at 11:06
response variable is returning 3 but $scope.data.months returns 0 as you have asked me to console.log(Object.keys(response).length). — Ramkishan Suthar, Apr 05 '17 at 13:02

score 0 · Answer 1 · edited May 23 '17 at 11:46

0

Regarding to your first question. If console show 0 array and opening it show items in it then it is an unresolved promise issue. In other words, when you call your first console.log, the promise is not yet resolved, but resolving it in the meantime will show you the returned array if you open it.

For the second question, I think this might help you.

edited May 23 '17 at 11:46

Community

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answered Apr 05 '17 at 11:15

neptune

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count number of object in an array angular js

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