Breaking News: Grepper is joining You.com. Read the official announcement!

javascript reduce array of objects

Add Answer

TC5550 answered on May 21, 2020 Popularity 10/10 Helpfulness 6/10

answer javascript reduce array of objects

related arry to object using reduce

related reduce object to array javascript

related reduce an array of objects into a single object

related array of obj to obj with reduce

related reduce method in javascript array of bjects

javascript reduce array of objects

Comment

var objs = [
  {name: "Peter", age: 35},
  {name: "John", age: 27},
  {name: "Jake", age: 28}
];

objs.reduce(function(accumulator, currentValue) {
  return accumulator + currentValue.age;
}, 0); // 35 + 27 + 28 = 90

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: javascript reduce

Link to this answer
Share Copy Link

Contributed on May 21 2020

TC5550

0 Answers Avg Quality 2/10

Closely Related Answers

arry to object using reduce

Comment

const posts = [
    {id: 1, category: "frontend", title: "All About That Sass"},
    {id: 2, category: "backend", title: "Beam me up, Scotty: Apache Beam tips"},
    {id: 3, category: "frontend", title: "Sanitizing HTML: Going antibactirial on XSS attacks"}
];

const categoryPosts = posts.reduce((acc, post) => {
    let {id, category} = post;
    return {...acc, [category]: [...(acc[category] || []), id]};
}, {});

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: dev.to

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on May 30 2022

Luiz Guilherme Bestel

0 Answers Avg Quality 2/10

reduce object to array javascript

Comment

var arr = [{x:1},{x:2},{x:4}];

arr.reduce(function (a, b) {
  return {x: a.x + b.x}; // returns object with property x
})

// ES6
arr.reduce((a, b) => ({x: a.x + b.x}));

// -> {x: 7}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jul 23 2020

Jealous Jay

0 Answers Avg Quality 2/10

reduce an array of objects into a single object

Comment

var object = arr.reduce((obj, item) => (obj[item.key] = item.value, obj) ,{});

Popularity 9/10 Helpfulness 3/10 Language typescript

Source: stackoverflow.com

Tags: object ob

Link to this answer
Share Copy Link

Contributed on Sep 15 2022

Drosophila

0 Answers Avg Quality 2/10

array of obj to obj with reduce

Comment

const convertArrayToObject = (array, key) => {
  const initialValue = {};
  return array.reduce((obj, item) => {
    return {
      ...obj,
      [item[key]]: item,
    };
  }, initialValue);
};

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: dev.to

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Aug 26 2021

Lonely Lyrebird

0 Answers Avg Quality 2/10

reduce method in javascript array of bjects

Comment

-2

var arr = [{x:1}, {x:2}, {x:4}];
arr.reduce(function (acc, obj) { return acc + obj.x; }, 0); // 7
console.log(arr);

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Dec 24 2020

Hurt Hamster

0 Answers Avg Quality 2/10

javascript reduce array of objects

Contents

More Related Answers

javascript reduce array of objects

Closely Related Answers

arry to object using reduce

reduce object to array javascript

reduce an array of objects into a single object

array of obj to obj with reduce

reduce method in javascript array of bjects

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.