• views: 152
• date: 23 December 2022
• posted by: mitsumi

What you'll learn
Rxjs Basics
Rxjs Subjects
Rxjs Operators
Rxjs Subscription
Understanding Rxjs in more depth
Creational, Join, Transformational Operators
Error Handling in Rxjs
Requirements
Knowledge of jаvascript is important
Description
RxJS is a library for composing asynchronous and event-based programs by using observable sequences. It provides one core type, the Observable, satellite types (Observer, Schedulers, Subjects) and operators inspired by Array#extras (map, filter, reduce, every, etc) to allow handling asynchronous events as collections.Think of RxJS as Lodash for events.ReactiveX combines the Observer pattern with the Iterator pattern and functional programming with collections to fill the need for an ideal way of managing sequences of events.The essential concepts in RxJS which solve async event management are:Observable: represents the idea of an invokable collection of future values or events.Observer: is a collection of callbacks that knows how to listen to values delivered by the Observable.Subscription: represents the execution of an Observable, is primarily useful for cancelling the execution.Operators: are pure functions that enable a functional programming style of dealing with collections with operations like map, filter, concat, reduce, etc.Subject: is the equivalent to an EventEmitter, and the only way of multicasting a value or event to multiple Observers.Schedulers: are centralized dispatchers to control concurrency, allowing us to coordinate when computation happens on e.g. setTimeout or requestAnimationFrame or others.Conceptually promises are a subset of observables. Promise is a value that will resolve asynchronously. Most typical example ishttp requests. Observables deal with sequence of asynchronous events. These events could be mouse positions, clicks, user input etc. So one could say observables are richer and more complex abstraction for handling asynchronicity.So, calling observables as promises + helper methods is an oversimplification. The answer to your question depends on whether you need to deal with sequence of events or if you can live with "simple" synchronicity.
Overview
Section 1: Rxjs Basics
Lecture 1 Rxjs Overview
Lecture 2 Rxjs setup on Local Machine
Lecture 3 Observables
Lecture 4 Observers
Section 2: Creational Operators
Lecture 5 What are Operators
Lecture 6 $ajax Operator
Lecture 7 bindCallback
Lecture 8 RxJs Empty, FromEvent, and Interval
Lecture 9 range operator
Lecture 10 throwError
Section 3: Join Creation Operators
Lecture 11 Concat
Lecture 12 ForkJoin
Lecture 13 Merge and mapTo
Lecture 14 Partition
Lecture 15 race
Section 4: Transformation Operators
Lecture 16 buffer
Lecture 17 concatMap
Lecture 18 map
Lecture 19 mergeMap
Lecture 20 switchMap
Lecture 21 scan
Lecture 22 toArray
Section 5: Filtering
Lecture 23 Filter
Lecture 24 Find
Lecture 25 take
Lecture 26 first
Lecture 27 skip
Lecture 28 ignoreElements
Section 6: Utility
Lecture 29 tap
Lecture 30 delay
Lecture 31 finalize
Lecture 32 repeat
Section 7: Error Handling
Lecture 33 CatchError
Lecture 34 retry
Section 8: Subscription, Subject and Scheduler
Lecture 35 Subscription
Lecture 36 Subjects Demo
Lecture 37 Async Subject
Lecture 38 Behaviour Subject
Beginner Angular developers who want to learn Rxjs in more depth,jаvascript/NodeJs developers who want to learn Asynchronous programming pattrern



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