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24f43903b4
PR-URL: https://github.com/nodejs/node/pull/14235 Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> Reviewed-By: James M Snell <jasnell@gmail.com>
24 lines
699 B
JavaScript
24 lines
699 B
JavaScript
/**
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* Convert array of 16 byte values to UUID string format of the form:
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* XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
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*/
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var byteToHex = [];
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for (var i = 0; i < 256; ++i) {
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byteToHex[i] = (i + 0x100).toString(16).substr(1);
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}
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function bytesToUuid(buf, offset) {
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var i = offset || 0;
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var bth = byteToHex;
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return bth[buf[i++]] + bth[buf[i++]] +
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bth[buf[i++]] + bth[buf[i++]] + '-' +
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bth[buf[i++]] + bth[buf[i++]] + '-' +
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bth[buf[i++]] + bth[buf[i++]] + '-' +
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bth[buf[i++]] + bth[buf[i++]] + '-' +
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bth[buf[i++]] + bth[buf[i++]] +
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bth[buf[i++]] + bth[buf[i++]] +
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bth[buf[i++]] + bth[buf[i++]];
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}
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module.exports = bytesToUuid;
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