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

Store these objects in an array, such as:

var myObjects = [
    {'delivered':10,'due':11,'team_name':'UK'},
    {'delivered':10,'due':11,'team_name':'US'},
    {'delivered':10,'due':11,'team_name':'UK'}
];

Create a new object in which you will store your results:

var results = {};

Then iterate through the array with a for loop (as it is generally faster) and add the other properties according to team_name:

for (var i = 0; i <= myObjects.length; i++) {
    if (typeof results[myObjects[i].team_name] !== undefined) {
        results[myObjects[i]].delivered += myObjects[i].delivered;
        results[myObjects[i]].due += myObjects[i].due; 
    } else {
        // Set 0 to these properties if the entry didn't exist
        results[myObjects[i]].delivered = 0;
        results[myObjects[i]].due = 0;
    }
}