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crypto: improve randomUUID performance #37243

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rangoo94 wants to merge 10 commits into from
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crypto: improve randomUUID performance #37243

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e75bdc2
crypto: decompose randomuuid implementation
rangoo94 Feb 5, 2021
d3403ac
crypto: eliminate intermediate randomuuid buffer
rangoo94 Feb 5, 2021
0b6152e
crypto: optimize randomuuid options access
rangoo94 Feb 5, 2021
952289c
crypto: use faster randomuuid serialization
rangoo94 Feb 5, 2021
f7180c3
crypto: allocate randomuuid hex bytes when needed
rangoo94 Feb 5, 2021
19a4911
crypto: apply code style fixes from review
rangoo94 Feb 6, 2021
74b50ed
crypto: use primordial in favor of prototype chain
rangoo94 Feb 6, 2021
63c612a
crypto: reformat randomuuid builder code
rangoo94 Feb 6, 2021
321ad23
crypto: use nullish assignment when possible
rangoo94 Feb 6, 2021
61f67cf
crypto: reformat randomuuid options destructuring
rangoo94 Feb 6, 2021
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crypto: use primordial in favor of prototype chain 
Co-authored-by: Antoine du Hamel <duhamelantoine1995@gmail.com>
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@rangoo94 @aduh95
rangoo94 and aduh95 committed Feb 24, 2021
commit 74b50ed4004112b50488eaa512c9741e867b27f3
5 changes: 4 additions & 1 deletion lib/internal/crypto/random.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,8 @@ const {
MathMin,
NumberIsNaN,
NumberIsSafeInteger,
NumberPrototypeToString,
StringPrototypePadStart,
} = primordials;

const {
Expand Down Expand Up @@ -305,7 +307,8 @@ function getHexBytes() {
if (hexBytesCache === undefined) {
hexBytesCache = new Array(256);
for (let i = 0; i < hexBytesCache.length; i++) {
hexBytesCache[i] = i.toString(16).padStart(2, '0');
const hex = NumberPrototypeToString(i, 16);
hexBytesCache[i] = StringPrototypePadStart(hex, 2, '0');
}
}
return hexBytesCache;
Expand Down