bench index

bench-index.js

const list = {
  'a': null,
  'b': null,
  'c': null,
  'd': null,
  'e': null,
  'f': null,
  'g': null,
  'h': null,
  'i': null,
  'j': null,
  'k': null,
  'l': null,
  'm': null,
  'n': null,
  'o': null,
};

const start = Date.now();

for (let i=0; i<100000; i++) {
  let result = list['h'];
}

console.log(Date.now() - start);