Benchmark Run Result for: Array vs. object

Array vs. object

Date tested: one year ago

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Test name	Executions per second
Object lookup	9079708.0 Ops/sec
Array lookup	27132290.0 Ops/sec

Benchmark definition (click to collapse):

Script Preparation code:

var obj = {
    1: true,
    2: false,
    3: true,
    4: false
};
var arr = [1, 3];

Tests:

Object lookup
obj[1] !== undefined
Array lookup
arr.includes(1)

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