Making Observable better
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src/
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node_modules/
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{
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{
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"name": "@hibas123/utils",
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"name": "@hibas123/utils",
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"version": "1.0.2",
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"version": "2.0.0",
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"description": "Different Utilities, that are not worth own packages",
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"description": "Different Utilities, that are not worth own packages",
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"main": "lib/index.js",
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"main": "lib/index.js",
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"types": "lib/index.d.ts",
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"types": "lib/index.d.ts",
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"devDependencies": {
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"devDependencies": {
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"typescript": "^3.3.3333"
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"typescript": "^3.3.3333"
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},
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},
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"files": [
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"lib/",
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"tsconfig.json",
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"readme.md"
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],
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"private": false
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"private": false
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}
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}
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@ -1,9 +1,11 @@
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import Lock, { Release } from "./lock";
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import Lock, { Release } from "./lock";
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import Observable, { ObserverCallback } from "./observable";
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import Observable, { ObserverCallback, ObserverCallbackCollect, ObservableInterface } from "./observable";
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export {
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export {
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Lock,
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Lock,
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Release,
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Release,
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Observable,
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Observable,
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ObserverCallback
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ObserverCallback,
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ObserverCallbackCollect,
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ObservableInterface
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}
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}
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@ -1,39 +1,58 @@
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export type ObserverCallback<T> = (data: T[]) => void;
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export type ObserverCallbackCollect<T> = (data: T[]) => void;
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export type ObserverCallback<T> = (ata: T) => void;
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export type ObservableInterface<T> = {
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/**
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* Subscribe to Observable
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* @param {function} callback
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*/
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subscribe: (callback: ObserverCallback<T>) => void;
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/**
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* Unsubscribe fron Observable
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* @param {function} callback
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*/
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unsubscribe: (callback: ObserverCallback<T>) => void;
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/**
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* Subscribe to Observable in collect mode
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* @param {function} callback
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*/
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subscribeCollect: (callback: ObserverCallbackCollect<T>) => void;
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};
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export default class Observable<T = any> {
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export default class Observable<T = any> {
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private subscriber: { callback: ObserverCallback<T>, one: boolean }[] = [];
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private subscriber: ObserverCallback<T>[] = [];
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private subscriberCollect: ObserverCallbackCollect<T>[] = [];
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private events: T[] = [];
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private events: T[] = [];
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private timeout: number | undefined = undefined;
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private timeout: NodeJS.Timeout | number | undefined = undefined;
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constructor(private collect: boolean = true, private collect_intervall: number = 100) { }
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constructor(private collect_intervall: number = 100) { }
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/**
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/**
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* Creates Public API with subscribe and unsubscribe
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* Creates Public API with subscribe and unsubscribe
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*
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*
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* @returns {object}
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* @returns {object}
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*/
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*/
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getPublicApi() {
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getPublicApi(): ObservableInterface<T> {
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return {
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return {
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/**
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subscribe: (callback: ObserverCallback<T>) => {
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* Subscribe to Observable
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let oldcb = this.subscriber.find(e => e === callback);
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* @param {function} callback
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if (!oldcb)
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*/
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this.subscriber.push(callback)
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subscribe: (callback: ObserverCallback<T>, one: boolean = false) => {
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let oldcb = this.subscriber.find(e => e.callback === callback);
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if (oldcb)
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oldcb.one = one
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else
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this.subscriber.push({ callback, one })
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},
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},
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/**
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unsubscribe: (callback: ObserverCallback<T> | ObserverCallbackCollect<T>) => {
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* Subscribe fron Observable
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let idx = this.subscriber.findIndex(e => e === callback);
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* @param {function} callback
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*/
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unsubscribe: (callback: ObserverCallback<T>) => {
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let idx = this.subscriber.findIndex(e => e.callback === callback);
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if (idx >= 0) {
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if (idx >= 0) {
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this.subscriber.splice(idx, 1);
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this.subscriber.splice(idx, 1);
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} else {
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idx = this.subscriberCollect.findIndex(e => e === callback);
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if (idx >= 0)
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this.subscriberCollect.splice(idx, 1);
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}
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}
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},
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subscribeCollect: (callback: ObserverCallbackCollect<T>) => {
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let oldcb = this.subscriberCollect.find(e => e === callback);
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if (!oldcb)
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this.subscriberCollect.push(callback)
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}
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}
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}
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}
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}
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}
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@ -43,21 +62,15 @@ export default class Observable<T = any> {
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* @param data data to be sent
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* @param data data to be sent
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*/
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*/
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send(data: T) {
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send(data: T) {
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if (!this.collect)
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this.subscriber.forEach(e => e(data));
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this.subscriber.forEach(e => e.callback([data]));
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else {
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this.events.push(data);
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this.events.push(data);
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if (!this.timeout) {
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if (!this.timeout) {
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this.timeout = setTimeout(() => {
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this.timeout = setTimeout(() => {
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this.subscriber.forEach(cb => {
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this.subscriberCollect.forEach(cb => {
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if (cb.one)
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cb(this.events)
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this.events.forEach(e => cb.callback([e]));
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else
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cb.callback(this.events)
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});
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});
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this.timeout = undefined;
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this.timeout = undefined;
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}, this.collect_intervall);
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}, this.collect_intervall);
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}
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}
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}
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}
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}
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}
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}
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