I have an array of objects. Every object has a name key, I want to return an array of objects which contain same name value objects in an array against a key.
Thank you.
const data = [
{
name: "John",
age: 20,
},
{
name: "Brad",
age: 24,
},
,
{
name: "Will",
age: 20,
},
,
{
name: "Alex",
age: 25,
},
{
name: "Taylor",
age: 21,
},
];
Expected output:
[
{
1: [
{
name: "John",
age: 20,
},
{
name: "Will",
age: 20,
},
],
2: [
{
name: "Brad",
age: 24,
},
{
name: "Taylor",
age: 24,
},
],
3: [
{
name: "Alex",
age: 25,
},
],
},
];
here is the answer
result = data.reduce(function (r, a) {
r[a.age] = r[a.age] || [];
r[a.age].push(a);
return r;
}, Object.create(null));
console.log(result);