Benchmark: Recursive Iteration VS. Dynamic RegExp

Script Preparation code:

var parentIds = (new Array(500_000)).map(i => `http://parent/${i}`);
var activeParentIds = parentIds.filter((_, i) => i % 2 === 0);
var pendingChildren = parentIds.reduce((acc, parentId) => ({
    ...acc,
    [parentId + '|A']: true,
    [parentId + '|B']: false,
    [parentId + '|C']: true,
}), {})

Tests:

Recursive Iteration
Object.entries(pendingChildren).some(([childKey, isPending]) => isPending && activeParentIds.some(parentId => childKey.startsWith(parentId + '|')))
Dynamic RegExp
var regex = new RegExp('/^' + activeParentIds.join('|') + '\|') Object.entries(pendingChildren).some(([childKey, isPending]) => isPending && regex.test(childKey))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Recursive Iteration
Dynamic RegExp

Fastest: N/A

Slowest: N/A

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Recursive Iteration VS. Dynamic RegExp (version: 1)

Comparing performance of: Recursive Iteration vs Dynamic RegExp

Created: 4 years ago by: Registered User

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Recursive Iteration

Dynamic RegExp

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results