Note that the huge time saver here is actually pooling crypto.randomBytes() ahead of time. So I set out on a mission to make 'if' blocks and strings faster than bitwise operations, and I did! Over 2x faster! (generally in the range of 550,000/s instead of 250,000/s) How is it 2x faster!?!? Manual UUIDs The following generates a UUID Cypher Copy to Clipboard Run in Neo4j Browser RETURN apoc.
UUIDs are generated using the java randomUUID utility method, which generates a v4UUID. (BTW, I was totally looking at the wrong function) UUIDs The library supports manual and automation generation of UUIDs, which can be stored as properties on nodes. UUID, short for Universal Unique Identifier, is a 128-bit value for representing entities on the internet. Is that really all that more efficient than just accessing strings? Well, while I was looking at all that math in node-uuid, I wondered to myself: A tiny (116 bytes), secure URL-friendly unique string ID generator. node-uuid vs crazy-uuid vs fast-uuidĮverybody knows about node-uuid and that it's pretty fast, right?Īnd everybody knows about 140byte-uuid and that it's insanely small, but really slow, right?
#Node uuid generator generator
Even its tests are dependncy and build-step free. nestsjs generate uuid node generator uuid node js uniqueidentifier node. This, however, is easy to read and understand (for me, at least). offset - (Number) Starting index in buffer at which to begin writing. buffer - (Array Buffer) Array or buffer where UUID bytes are to be written. This is started out as a curiosity, pasted as a gist but now, years later, I've come back to it because there are too many of these uuid modules out there and they're too complicated. Set to one of the built-in generators - uuid.mathRNG (all platforms), uuid.nodeRNG (node.js only), uuid.whatwgRNG (WebKit only) - or a custom function that returns an array 16 of byte values.
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