Sum of same object name in javascript

Question

Hi friends I\'m beginner for javascript how i sum same n no\'s of object name corresponding value and push the result to new array.see this is sample object

va

Answer 1

You can first create array of objects and then reduce() to return one object.

var obj_1 ={'delivered':10,'due':11,'team_name':'UK'};
var obj_2 ={'delivered':10,'due':11,'team_name':'US'};
var obj_nth ={'delivered':10,'due':11,'team_name':'UK'};

var result = [obj_1, obj_2, obj_nth].reduce(function(r, e) {
  if(!r[e.team_name]) {
    r[e.team_name] = {delivered:0,due:0}
  }
  r[e.team_name].delivered += e.delivered
  r[e.team_name].due += e.due
  return r
}, {})

console.log(result)