isReady

returns true if the item with `name` is already instantiated and stored in the `container`.

Import

import { isReady } from 'true-di';

const { isReady } = require('true-di');

Declaration

function isReady<IContainer>(container: IContainer, name: keyof IContainer): boolean

Arguments

• container: IContainer - container to check if item created

• name: keyof IContainer - name of container items.

Returns

• boolean - true if item is already created and false if it is not.

This function is needed because any attempt to read the item from the container causes the item will be created. isReady doesn't affect reading the component so it returns its status.

Example

import { isReady } from 'true-di/utils';
import container from './container';

console.log(isReady(container, 'logger'));
// prints: false -- if logger was not touched before

container.logger.info("Let's log a message");

console.log(isReady(container, 'logger'));
// prints: true

console.log(Boolean(container.logger));
// always prints true, becouse reading logger creates it