NonFunctionKeys

Since 1.0.0

Get keys of non-function properties.

Signature

type NonFunctionKeys<T> = {
  [K in keyof T]: T[K] extends (...args: any[]) => any ? never : K
}[keyof T]

Parameters

Parameter	Description
T	The object type

Description

Extracts the keys of all non-function properties from an object type.

Examples

Basic Usage

import type { NonFunctionKeys } from 'uni-types'

interface User {
  name: string
  age: number
  onClick: () => void
}

type DataKeys = NonFunctionKeys<User>
// 'name' | 'age'

Only Functions

interface Handlers {
  onClick: () => void
  onChange: (v: string) => void
}

type NoData = NonFunctionKeys<Handlers> // never

Related

• FunctionKeys - Get function property keys
• FunctionOnly - Extract function properties
• DataOnly - Extract non-function properties