“…You will also understand advanced concepts such as event loops, setTimeout and setInterval, callbacks and callback hell, promises, async await, and Fetch API with examples. …”

Tabla de Contenidos: “….) -- Exploring functions -- The basics -- Arrow functions -- Closures -- Creating and managing classes -- Creating a class -- Class methods -- Extending classes -- Static methods -- Getters and setters -- Summary -- Further reading -- Chapter 4: Asynchronous Programming -- Technical requirements -- Asynchronous programming in JavaScript -- The asynchronous mindset -- Understanding callbacks -- Timers and intervals -- Error first callbacks -- Callback hell -- Mastering promises -- Using promises -- Creating promises -- Callback hell with promises -- Parallel promises -- Error handling -- Chaining promises -- Using async and await to handle asynchronous code -- async -- await -- IIFEs -- Summary -- Further reading -- Part 2: Node.js Ecosystem and Architecture -- Chapter 5: Node.js Core Libraries -- Technical requirements -- Modularizing your code (ESM versus CJS) -- CommonJS (CJS) -- ECMAScript Modules (ESM) -- Understanding how interoperability works -- Structuring core libraries -- The library structure -- Stability index -- Other core libraries -- Command-line options -- Summary -- Further reading -- Chapter 6: External Modules and npm -- Technical requirements -- Managing the application with package.json…”

Tabla de Contenidos: “…The infer keyword -- Built-in conditional types -- The polymorphic this type -- Ambient declarations -- Type declarations - .d.ts -- Summary -- Chapter 3: Working with Functions -- Working with functions in TypeScript -- Function declarations and function expressions -- Function types -- Trailing commas in function arguments -- Functions with optional parameters -- Functions with default parameters -- Functions with REST parameters -- Function overloading -- Specialized overloading signature -- Function scope -- Immediately invoked functions -- Tag functions and tagged templates -- Asynchronous programming in TypeScript -- Callbacks and higher-order functions -- Arrow functions -- Callback hell -- Promises -- Covariant checking in callback parameters -- Generators -- Asynchronous functions - async and await -- Asynchronous generators -- Asynchronous iteration (for await...of) -- Delegating to another generator (yield*) -- Summary -- Chapter 4: Object-Oriented Programming with TypeScript -- Classes -- Strict property initialization -- Inheritance -- Depth of the inheritance tree (DIT) -- Access modifiers -- The public access modifier -- The private access modifier -- The protected access modifier -- Parameter properties -- Class expressions -- Static members -- Optional members -- Read-only properties -- Method overriding -- Generic classes -- Generic constraints -- Multiple types in generic type constraints -- The new operator in generic types -- Association, aggregation, and composition -- Association -- Aggregation -- Composition -- Mixins (multiple inheritance) -- The diamond problem -- Implementing mixins -- Iterables -- Abstract classes -- Interfaces -- SOLID principles, encapsulation, and polymorphism -- SOLID - the single responsibility principle -- Encapsulation -- SOLID - the open/closed principle -- Polymorphism…”

Tabla de Contenidos: “…Summarizing -- Adding AJAX calls -- An even bigger solution -- Summary -- Chapter 3: Asynchronous Programming -- The callback pattern -- The callback pattern on the web -- The callback pattern in Node.js -- Problems with structuring async code - callback hell -- Promises -- Thenables -- Handling rejected promises -- Chaining - dealing with several promises -- Asynchronous libraries -- Async library -- async.map() -- async.parallel() -- async.series() -- Async/await -- Summary -- Chapter 4: Functional Reactive Programming -- Functional programming versus imperative programming -- Imperative programming versus declarative programming -- First-class higher-order functions -- Pure functions -- Recursion -- No more loops -- Reoccurring pattern -- Summarise -- Count -- Width -- Asynchronous data streams -- Comparing lists to async streams - preparing for RxJS -- Combining the functional programming paradigm with streams -- Projection -- Filtering -- Combining mindsets -- Summary -- Chapter 5: RxJS Basics -- Observer pattern -- RxJS core concepts -- Observable and Observer -- Producer -- Observable error and completion -- Operator -- Creating Observables -- Creation operators -- of() -- interval() -- from() -- fromEvent() -- bindCallback() -- Cleanup -- Subscriptions -- Creating a core implementation of RxJS -- Implementing create() -- Handling subscriptions -- Adding operators -- Revisiting the basics, adding errors, and complete -- Summary -- Chapter 6: Manipulating Streams and Their Values -- Starting out -- Understanding operators -- Stream in a stream -- AJAX -- fetch() -- ajax() operator -- Cascading calls -- A deeper look -- Creation operators -- of() operator -- from() operator -- range() operator -- fromEvent() operator -- Combination -- merge() operator -- combineLatest() -- zip() -- concat() -- Mathematical -- max -- min -- sum -- Time…”

“…Developers will need to use the async / await features in most, if not all, of their upcoming development efforts. …”