Run results for: json stringify vs object tostring number thresholds

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0

Browser: Firefox 142

Operating system: Linux

Device Platform: Desktop

Date tested: 10 months ago

toString undefined

1049.4M/s

toString number

893.6M/s

JSON.stringify undefined

13.8M/s

JSON.stringify number

11.5M/s

toString array

4.2M/s

JSON.stringify array

2.3M/s

View exact numbers

Test name	Executions per second
✓ toString undefined	1,049,377,536 Ops/sec
toString number	893,639,808 Ops/sec
JSON.stringify undefined	13,793,330 Ops/sec
JSON.stringify number	11,481,098 Ops/sec
toString array	4,217,432 Ops/sec
JSON.stringify array	2,302,558 Ops/sec

Script Preparation code:

function makeTestDataNum() { return 0; }

function makeTestDataUndef() { return undefined; }

function makeTestDataArray() { return [0, 0.4, 0.6, 1]; }

Tests:

toString number
const d = makeTestDataNum() d ? d.toString() : "0"
JSON.stringify number
JSON.stringify(makeTestDataNum());
toString undefined
const d = makeTestDataUndef() d ? d.toString() : "0"
JSON.stringify undefined
JSON.stringify(makeTestDataUndef());
toString array
const d = makeTestDataArray() d ? d.toString() : "0"
JSON.stringify array
JSON.stringify(makeTestDataArray());