Function: construct()

construct<A, I>(Class): (...args) => I

Defined in: src/utils/construct.ts:19

Wraps a class in a factory function that calls it with new.

Classes are usually registered directly (addSingleton('repo', Repo, ['db'])): the container detects them. Use construct() for the classes it cannot detect, which look like plain functions:

• classes compiled to ES5 (Babel for old browsers, TypeScript target: es5, prebuilt ES5 libraries)
• bound classes (Repo.bind(null))

Registering one of those without construct() fails with INJECUTE_CLASS_NOT_CONSTRUCTED.

Type Parameters

A

A extends unknown[]

I

I

Parameters

Class

new (...args) => I

Returns

(...args) => I

Example

import { LegacyClient } from 'some-es5-library';

app.addSingleton('client', construct(LegacyClient), ['config']);