Benchmark: Test 2 function in vanilla js

Script Preparation code:

var array = [
  {
    name: "Jules",
    age: 2,
    famille: "adam"
  },
  {
    name: "John",
    famille: "dupont"
  },
  {
    name: "Julie",
    famille: "dupont"
  },
  {
    name: "Juliette"
  }
];

Tests:

reduce and map
const result = Object.values( array.reduce((acc, obj) => { if (obj.hasOwnProperty("famille")) { if (!acc.hasOwnProperty(obj.famille)) { acc[obj.famille] = { prenom: [], famille: obj.famille }; } acc[obj.famille].prenom.push(obj.name); } return acc; }, {}) ).map((group) => { return { prenom: group.prenom, famille: group.famille }; }); console.log(result);
reduce and findIndex
const result = array.reduce((acc, curr) => { let index = acc.findIndex((item) => item.famille === curr.famille); if (index !== -1) { acc[index].prenom.push(curr.name); } else { acc.push({ prenom: [curr.name], famille: curr.famille }); } return acc; }, []); console.log(result);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
reduce and map
reduce and findIndex

Fastest: N/A

Slowest: N/A

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Related benchmarks:

Test 2 function in vanilla js (version: 0)

Comparing performance of: reduce and map vs reduce and findIndex

Created: 3 years ago by: Guest

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reduce and map

reduce and findIndex

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results