async-injection/lib/esm/injector.js

A robust lightweight dependency injection library for TypeScript.

/**
 * Allow for implicit typing of constants and interfaces.
 * Inspired by Angular and some colleges at work.
 */
export class InjectionToken {
    constructor(id) {
        this.id = id;
    }
    get description() {
        return this.toString();
    }
    toString() {
        // noinspection SuspiciousTypeOfGuard
        if (typeof this.id === 'symbol') {
            const desc = this.id.description;
            return desc !== undefined ? desc : this.id.toString();
        }
        return this.id.toString();
    }
}
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