plain-observable/lib/observer.js

A simple implementation of observable pattern

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
class ObserversList {
    constructor() {
        this.observers = [];
    }
    get size() {
        return this.observers.length;
    }
    add(obs) {
        this.observers.push(obs);
    }
    remove(obs) {
        const idx = this.indexOf(obs);
        if (idx > -1) {
            this.observers.splice(idx, 1);
        }
    }
    indexOf(obs) {
        return this.observers.findIndex(o => o === obs);
    }
    get(index) {
        return this.observers[index];
    }
}
exports.ObserversList = ObserversList;