Run results for: Date JsonReviver2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36

Browser: Chrome 99

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
1	16.5 Ops/sec
2	28.9 Ops/sec
3	16.0 Ops/sec
4	67.1 Ops/sec

Script Preparation code:

var input = [];

for (i = 0; i < 100000; i++) {
    const date = new Date(Math.random());
    input.push({
        key: 'businessDate',
        value: date.toString()
    });
}

Tests:

1
const result = input.map(x=>{ if (x.key === 'businessDate') { return new Date(x.value); } });
2
const result = input.map(x=>{ if (typeof value === 'string') { return new Date(x.value); } });
3
const result = input.map(x=>{ if (x.key.endsWith('Date')) { return new Date(x.value); } });
4
const result = input.map(x=>{ if (/(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2})/.test(x.value)) { return new Date(x.value); } });