Run results for: Switch vs lookup2

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.129 Safari/537.36

Browser: Chrome 81

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Switch	2333675.8 Ops/sec
Object lookup	747494.6 Ops/sec

Script Preparation code:

var pageNumber = 'Eight';
var pageRouteName;
var lookup = {
    One: 'create-very-one',
    Two: 'create-very-two',
    Three: 'create-very-three',
    Four: 'create-very-four',
    Five: 'create-very-five',
    Six: 'create-very-six',
    Seven: 'create-very-seven',
    Eight: 'create-very-eight',
    Nine: 'create-very-nine'
}

Tests:

Switch
switch (pageNumber) { case 'One': pageRouteName = 'create-very-one'; break; case 'Two': pageRouteName = 'create-very-two'; break; case 'Three': pageRouteName = 'create-very-three'; break; case 'Four': pageRouteName = 'create-very-four'; break; case 'Five': pageRouteName = 'create-very-five'; break; case 'Six': pageRouteName = 'create-very-six'; break; case 'Seven': pageRouteName = 'create-very-seven'; break; case 'Eight': pageRouteName = 'create-very-eight'; break; case 'Nine': pageRouteName = 'create-very-nine'; break; default: { throw new Error(`Page of given number is not allowed. Given page number: ${pageNumber}.`); } }
Object lookup
pageRouteName = lookup[pageNumber];

Run results for: Switch vs lookup2

Switch

Object lookup