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: 6 months ago

Test name	Executions per second
toString number	893639808.0 Ops/sec
JSON.stringify number	11481098.0 Ops/sec
toString undefined	1049377536.0 Ops/sec
JSON.stringify undefined	13793330.0 Ops/sec
toString array	4217432.5 Ops/sec
JSON.stringify array	2302558.2 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