Function identity

packages/remeda/src/identity.ts:20–26

()

 * @category Function
 */
export function identity(): IdentityFunction {
  // Notice that the exported identity function is just the "factory" for the
  // identity function. We do it this way so that all "Function" utilities have
  // a similar API where the function is called, and not just used "headless".
  // e.g. `identity()` and not `identity`, just like the API for `constant(1)`.
  return identityImplementation;
}

const identityImplementation: IdentityFunction = (firstParameter) =>
  firstParameter;