Socket
Socket
Sign inDemoInstall

uuid-js

Package Overview
Dependencies
0
Maintainers
1
Versions
11
Alerts
File Explorer

Advanced tools

Install Socket

Detect and block malicious and high-risk dependencies

Install

uuid-js

A js library to generate and parse UUIDs,TimeUUIDs and generate TimeUUID based on Date for range selections


Version published
Maintainers
1
Weekly downloads
53,473
decreased by-13.85%

Weekly downloads

Readme

Source

UUID-js

A js library to generate and parse UUID's, TimeUUID's and generate empty TimeUUID's based on TimeStamp for range selections.

var UUID = require('uuid-js');


// Generate a V4 UUID
var uuid4 = UUID.create();
console.log(uuid4.toString());
// Prints: 896b677f-fb14-11e0-b14d-d11ca798dbac


// Generate a V1 TimeUUID
var uuid1 = UUID.create(1);
console.log(uuid1.toString());


// First and last possible v1 TimeUUID for a given timestamp:
var date = new Date().getTime();
var uuidFirst = UUID.fromTime(date, false);
var uuidLast = UUID.fromTime(date, true);
console.log(uuidFirst.toString(), uuidLast.toString());
// Prints: aa0f9af0-0e1f-11e1-0000-000000000000 aa0f9af0-0e1f-11e1-c0ff-ffffffffffff


// Use these TimeUUID's to perform range queries in cassandra:
var today = new Date().getTime();
var last30days = (new Date().setDate( today.getDate() - 30 )).getTime();

var rangeStart = UUID.firstFromTime(last30days);
var rangeEnd = UUID.lastFromTime(today);

var query = ...("select first 50 reversed ?..? from user_twits where key=?", [ rangeStart, rangeEnd, "patricknegri" ]);

Instalation

$ npm install uuid-js

Functions List

These are available just with require and return an instance of the UUID object:

UUID.create(4); // Generate V4 UUID

UUID.create(1); // Generate V1 TimeUUID

UUID.fromTime(time, last); // Generate a V1 empty TimeUUID from a Date object (Ex: new Date().getTime() )

UUID.firstFromTime(time); // Same as fromTime but first sequence

UUID.lastFromTime(time); // Same as fromTime but last sequence

UUID.fromURN(strId); // Generate a UUID object from string

UUID.fromBytes(ints); // Generate a UUID object from bytes

UUID.fromBinary(binary); // Generate a UUID object from binary

Methods List

These must be called on an instance of the UUID object:

uuid.fromParts(timeLow, timeMid, timeHiAndVersion, clockSeqHiAndReserved, clockSeqLow, node);

uuid.toString(); // hex string version of UUID

uuid.toURN(); // same as hex, but with urn:uuid prefix

uuid.toBytes(); // converted to an array of bytes

Tests

make test

Contributors

  • Christoph Tavan dev@tavan.de

This work was based RFC and by the work of these people.

FAQs

Last updated on 21 Oct 2014

Did you know?

Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.

Install

Related posts

SocketSocket SOC 2 Logo

Product

  • Package Alerts
  • Integrations
  • Docs
  • Pricing
  • FAQ
  • Roadmap

Stay in touch

Get open source security insights delivered straight into your inbox.


  • Terms
  • Privacy
  • Security

Made with ⚡️ by Socket Inc