Run results for: Map vs JSON

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Browser: Chrome 113

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Map	1742395.4 Ops/sec
Json	3016601.5 Ops/sec

Script Preparation code:

var data = [
    {name: "anonystick", sex:1, age: 42, phone: 03543214564},
    {name: "medium", sex:0, age: 45, phone: 0321452145},
    {name: "subrss", sex:1, age: 41, phone: 03789456785}
]

Tests:

Map
const map = new Map(data.map(item=> [item.name, item])); data.map(( {name} )=> map[name] ?? null);
Json
const json = data.reduce((acc, item) => { acc[item.account] = item.rank return acc }, {}); data.map( ({name})=> json[name] ?? null)

Run results for: Map vs JSON

Map vs JSON

Map

Json