Is there a type in TypeScript for anything except functions?

Question

I would like to express that a paremeter should be an object or a simple value type (number, bool, string, etc.), but not a function.

If I use Object, t

Answer 1

Here is an approach that defines all valid (non-function) values and then uses a recursive definition. I think this works for my case and hopefully for anyone else who comes across this question.

Example on Typescript Playground

type NoFunctionValue =
    boolean
    | string
    | number
    | null
    | undefined
    | NoFunctionObject
    | NoFunctionArray

interface NoFunctionObject {
    [key: string]: NoFunctionValue
}

interface NoFunctionArray extends Array { }

// Try putting a function anywhere in here to see error
const text: NoFunctionObject = {
    bool: true,
    str: 'string',
    num: 7,
    nul: null,
    undef: undefined,
    arr: [true, 'string', 7, null, undefined],
    obj: {
        bool: true,
        str: 'string',
        num: 7,
        nul: null,
        undef: undefined,
        arr: [true, 'string', 7, null, undefined]
    }
}