Benchmark: for let vs Object.keys

Script Preparation code:

const object = {};
let sum = 0;

for (let i = 0; i < 1000; i++)
    object["property_" + Math.random()] = Math.random();

const keys = Object.keys(object);

Tests:

for let i in
for (let i in object) sum += object[i];
for let i of
for (let i of object) sum += i;
Object.keys (cached)
for (let i = 0 ; i < keys.length ; i++) sum += object[keys[i]];
Object.keys
const newKeys = Object.keys (object); for (let i = 0 ; i < newKeys.length ; i++) sum += object[newKeys[i]];

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
for let i in
for let i of
Object.keys (cached)
Object.keys

Fastest: N/A

Slowest: N/A

Latest run results:

No previous run results

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for let vs Object.keys (version: 0)

Comparing performance of: for let i in vs for let i of vs Object.keys (cached) vs Object.keys

Created: 5 months ago by: Guest

Jump to the latest result

for let i in

for let i of

Object.keys (cached)

Object.keys

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

No previous run results