Run results for: json stringify vs object tostring number thresholds

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36

Browser: Chrome 117

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
toString number	15131716.0 Ops/sec
JSON.stringify number	4644274.5 Ops/sec
toString undefined	5390064.5 Ops/sec
JSON.stringify undefined	2931264.0 Ops/sec
toString array	2710401.2 Ops/sec
JSON.stringify array	2493229.0 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());

Run results for: json stringify vs object tostring number thresholds

toString number

JSON.stringify number

toString undefined

JSON.stringify undefined

toString array

JSON.stringify array