simple compare for Object.groupBy v.s. for...of

Benchmark created on

Setup

const users = [
            { name: 'Alice', gentle: 'female' },
            { name: 'Bob', gentle: 'male' },
            { name: 'Charlie', gentle: 'male' },
            { name: 'Eve', gentle: 'female' }
        ];

Test runner

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Testing in
TestOps/sec
for...of
function groupBy(array, keySelector) {
              const group = {};
              for (const element of array) {
                  const key = keySelector(element);
                  if (!group[key]) {
                      group[key] = [];
                  }
                  group[key].push(element);
              }
              return group;
          }

          const groupedByAge = groupBy(users, user => user.gentle);
ready
Object.groupBy
        const groupedByAge = Object.groupBy(users, user => user.gentle);
ready

Revisions

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