Run results for: Comparing various way to check if a string is within the values of a typescript enum .

Given this typescript code // typescript like enum Status { A = 'a', B = 'b', C = 'c', D = 'd' } what is the faster simpler way to know if a string st is within the enum values.

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Run details:

User agent: Mozilla/5.0 (Android 11; Mobile; rv:109.0) Gecko/118.0 Firefox/118.0

Browser: Firefox Mobile 118

Operating system: Android

Device Platform: Mobile

Date tested: 6 months ago

Test name	Executions per second
compare individual strings	282093000.0 Ops/sec
use a regex	13062850.0 Ops/sec
use a set	268109600.0 Ops/sec

Script Preparation code:

var Status;
(function(Status) {
    Status["A"] = "a";
    Status["B"] = "b";
    Status["C"] = "c";
    Status["D"] = "d";
})(Status || (Status = {}));

var st = 'c'

var regexp1 = new RegExp(`${Status.A}|${Status.B}|${Status.C}`, 'i');
var set1 = new Set([Status.A,Status.B,Status.C]);

Tests:

compare individual strings
return (st === Status.A || st === Status.B || st === Status.C)
use a regex
return regexp1.test(st)
use a set
return set1.has(st)

Run results for: Comparing various way to check if a string is within the values of a typescript enum .

Given this typescript code // typescript like enum Status { A = 'a', B = 'b', C = 'c', D = 'd' } what is the faster simpler way to know if a string st is within the enum values.

compare individual strings

use a regex

use a set