Answers for "how to sum multiple object with the same key in an array?"

5

javascript sum array values by key

var array = [
  {name: "Peter", age: 43},
  {name: "John", age: 32},
  {name: "Jake", age: 21}
];

array.reduce(function(sum, current) {
  return sum + current.age;
}, 0); // 43 + 32 + 21 = 96
Posted by: Guest on May-22-2020

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