STB GUID

Returns a Globally Unique Identifier

GUID

GUID (or UUID) is an acronym for 'Globally Unique Identifier' (or 'Universally Unique Identifier'). It is a 128-bit integer number used to identify resources. The term GUID is generally used by developers working with Microsoft technologies, while UUID is used everywhere else.

How unique is a GUID?

128-bits is big enough and the generation algorithm is unique enough that if 1,000,000,000 GUIDs per second were generated for 1 year the probability of a duplicate would be only 50%. Or if every human on Earth generated 600,000,000 GUIDs there would only be a 50% probability of a duplicate.

Installation

npm install stb-guid

Use

var guid = require('stb-guid');
guid() // returns ex: cbb9a1d7-f048-4c3c-9add-d7018b0c9eaa