Promises

Callback, Promises, Async Await. We use these keywords when fetching data from an API, when creating delays or awaiting database calls, etc. But why? Why do we endorse Asynchronous patterns in the first place? Let’s find out! What does Asynchronous mean? By the definition — it’s a piece of code that will start now…

I don’t remember many dreams, but I feel amazing when I wake up. As I have that sense of nonexistence for a short period of time, and I like how it makes me feel. Just write Write Every day. An hour. A minute. A second. That will be enough. Cause…

You have promises. You need to wait. Wait for them all — TL;DR: Don’t block yourself in a sorted way. Problems Indeterminism Performance bottleneck Solutions Wait for all promises at once. Context We heard about semaphores while studying Operating Systems. We should wait until all conditions are met no matter the ordering. Sample Code Wrong async fetchOne() { /* long task */ } async fetchTwo() { /* another long…

First of all, this is the fourth article of this series. So I’ll assume you have already read the previous articles: Part I: what is a Promise Part II: creating Promises Part III: async and await Now, it’s time to learn some Promises methods that can help a lot to…

Promise, zaman uyumsuz bir işlemin nihai olarak tamamlanmasını (veya başarısızlığını) ve sonuçtaki değerini temsil eder. Bir vaat oluşturulduğunda mutlaka bilinmeyen bir değer için bir vekildir. İşleyicileri eşzamansız bir eylemin nihai başarı değeri veya başarısızlık nedeni ile ilişkilendirmenize olanak tanır. Bu, eşzamansız yöntemlerin eşzamanlı yöntemler gibi değerler döndürmesine olanak tanır:

Written by Callista Shin Aku lupa kapan tepatnya aku mulai memutuskan untuk nggak perlu nagih janji ke teman atau siapapun yang sempet janjiin sesuatu ke aku. Alasan aku nggak nagih janji ya karena aku berpikir, mungkin aja saat temanku mengucap janji itu cuma sekadar refleks. Refleks, respon cepat terhadap apa…