jest-get-type

Upstream: https://github.com/facebook/jest/tree/v27.4.7/packages/jest-get-type

A utility function to get the type of a value, including Luau and Roblox types.

Types supported:

• Lua Primitives - nil, table, number, string, function, boolean, userdata, thread
• Luau Polyfill types - symbol, regexp, error, set
• Roblox datatypes - DateTime, and other builtin types

:pencil2: Notes

• Lua makes no distinction between tables, objects, and arrays. We always return table at this level and consumers are expected to check at a higher level.
• Lua makes no distinction between null and undefined so we only return nil.
• Lua lacks the following primitives: bigint, symbol.
• Lua lacks the following built-in types: RegExp, Map, Set, Date.
• JestGetType deviates and exposes an isRobloxBuiltin method to check whether a value is a Roblox builtin type