acebase-core/dist/esm/object-collection.js

Shared AceBase core components, no need to install manually

import { ID } from './id.js';
/**
 * Convenience interface for defining an object collection
 * @example
 * type ChatMessage = {
 *    text: string, uid: string, sent: Date
 * }
 * type Chat = {
 *    title: text
 *    messages: ObjectCollection<ChatMessage>
 * }
 */
export class ObjectCollection {
    /**
     * Converts and array of values into an object collection, generating a unique key for each item in the array
     * @param array
     * @example
     * const array = [
     *  { title: "Don't make me think!", author: "Steve Krug" },
     *  { title: "The tipping point", author: "Malcolm Gladwell" }
     * ];
     *
     * // Convert:
     * const collection = ObjectCollection.from(array);
     * // --> {
     * //   kh1x3ygb000120r7ipw6biln: {
     * //       title: "Don't make me think!",
     * //       author: "Steve Krug"
     * //   },
     * //   kh1x3ygb000220r757ybpyec: {
     * //       title: "The tipping point",
     * //       author: "Malcolm Gladwell"
     * //   }
     * // }
     *
     * // Now it's easy to add them to the db:
     * db.ref('books').update(collection);
     */
    static from(array) {
        const collection = {};
        array.forEach(child => {
            collection[ID.generate()] = child;
        });
        return collection;
    }
}
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