Run results for: reduce creation x - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Browser: Chrome 126

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 5 months ago

Test name	Executions per second
spread insert	117.7 Ops/sec
assign insert	256.4 Ops/sec
map	1362.3 Ops/sec
mutation	1096.1 Ops/sec
tuple	2782.3 Ops/sec

Script Preparation code:

var data = Array.from({ length: 10000 }).map((_, idx) => idx)

Tests:

spread insert
data.reduce((acc, val) => ({ ...acc, [val]: val }), {})
assign insert
data.reduce((acc, val) => Object.assign(acc, {[val]: val}))
map
Object.fromEntries(data.reduce((acc, val) => acc.set(val, val), new Map()))
mutation
data.reduce((acc, val) => acc[val] = val, {})
tuple
Object.fromEntries(data.map((v) => [v, v]))

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