![]() But I know people come up with all sorts of links on how “Math.random()” isn’t truly random etc. ![]() generateGuid() : string from 'uuid' Īgain, in most cases I just use the first function. It might be just generating correlation ids, or just as a way to generate some randomized letters/numbers, but not global uniqueness and/or collisions aren’t such a big deal. A UUID is a 128-bit number used to uniquely identify information in computer systems, such as database table keys, COM interfaces, classes and type libraries, and many others. This first piece of code is one I use in places where the randomness isn’t such a big deal. A C++17 cross-platform single-header library implementation for universally unique identifiers, simply know as either UUID or GUID (mostly on Windows). Luckily, there are two ways that I’ve used in the past to generate GUID or GUID-like strings. ![]() That’s right, out of the box, you cannot generate a GUID with a nice single line of code! Very annoying. It can be used to tag objects with very short lifetimes, or to reliably identify very persistent objects across a network. Notes: Since this is for a simulator, I don't really need cryptographic randomness. One of the more frustrating limitations of vanilla JavaScript is that there is actually no GUID or UUID generator in the language. A UUID, or Universally unique identifier, is intended to uniquely identify information in a distributed environment without significant central coordination. What is the best way to programmatically generate a GUID or UUID in C++ without relying on a platform-specific tool I am trying to make unique identifiers for objects in a simulation, but can't rely on Microsoft's implementation as the project is cross-platform.
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