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Run results for: new Date(date) vs new Date(normalizeToLocalDate(date)) 2

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Run details:
Mozilla/5.0 (Linux; Android 10; K) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Mobile Safari/537.36
Chrome Mobile 127
Android
Mobile
8 months ago
Test name Executions per second
new Date(dateTimeISO) 1617068.8 Ops/sec
new Date(normalizeToLocalDate(dateTimeISO)) 1475082.5 Ops/sec
new Date(dateOnlyISO) 2105175.5 Ops/sec
new Date(normalizeToLocalDate(dateOnlyISO)) 986165.4 Ops/sec
Script Preparation code:
​x
 
var dateTimeISO = '2024-08-21T17:00:00.000Z'
var dateOnlyISO = '2024-08-21'
​
var normalizeToLocalDate = (date) => ` ${date}`
Tests:

  • new Date(dateTimeISO)

     
    new Date(dateTimeISO)

  • new Date(normalizeToLocalDate(dateTimeISO))

     
    new Date(normalizeToLocalDate(dateTimeISO))

  • new Date(dateOnlyISO)

     
    new Date(dateOnlyISO)

  • new Date(normalizeToLocalDate(dateOnlyISO))

     
    new Date(normalizeToLocalDate(dateOnlyISO))