access performance test

access-test.js

function a({ en, es, pl, fr, ch, ja }) {
  return en
    ? 'hi'
    : es
      ? 'hola'
      : pl ? 'czezch' : fr ? 'bon jour' : ch ? 'ni hao' : ja ? 'wtf' : '';
}

const l = {
  en: 'hi',
  es: 'hola',
  pl: 'czezch',
  fr: 'bon jour',
  ch: 'ni hao',
  ja: 'wtf',
};

function b({ ll }) {
  return l[ll];
}

function c(o) {
  return l[o.ll];
}

const ls = new Map([
  ['en', 'hi'],
  ['es', 'hola'],
  ['pl', 'czezch'],
  ['fr', 'bon jour'],
  ['ch', 'ni hao'],
  ['ja', 'wtf'],
]);
function d({ ll }) {
  return ls.get(ll);
}

const ll = { es: true, ll: 'es' };

console.time('a');
for (let i = 0; i < 1000; i++) {
  a(ll);
}
console.timeEnd('a');

console.time('b');
for (let i = 0; i < 1000; i++) {
  b(ll);
}
console.timeEnd('b');

console.time('d');
for (let i = 0; i < 1000; i++) {
  d(ll);
}
console.timeEnd('d');

console.time('c');
for (let i = 0; i < 1000; i++) {
  c(ll);
}
console.timeEnd('c');

what.md

This is a simple access performance test to determine which is the best way to access a locale value off an object.

To run it yourself, do node access-test.js or paste that into your browser's terminal:

a: 0.198ms
b: 0.080ms
d: 0.127ms
c: 0.098ms

b, simple objects holding keys seems to be the most performant approach overall