Run results for: interleave

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.14.1

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
reduce	861436.1 Ops/sec
while	888557.9 Ops/sec
for-loop	885539.9 Ops/sec

Script Preparation code:

function makeid() {
  return Math.random().toString(32).slice(-7);
}

function makeArray(length) {
  return Array.from({length}, makeid)
}

window.testFixtures = {
  strings: makeArray(50),
  chunks: makeArray(49).map(id => () => id)
}

Tests:

reduce
const {strings, chunks} = window.testFixtures chunks.reduce(function interleave(text, chunk, i) { return text + chunk() + strings[i + 1] }, strings[0])
while
const {strings, chunks} = window.testFixtures let text = strings[0] const length = chunks.length let i = -1 while(++i < length) { text += (0, chunks[i])() text += strings[i + 1] }
for-loop
const {strings, chunks} = window.testFixtures let text = strings[0] for (let i = 0, length = chunks.length; i < length; i += 1) { text += (0, chunks[i])() text += strings[i + 1] }

Run results for: interleave

reduce

while

for-loop