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A few function constructors are refactored to classes and properties are tagged with types. This one step reveals yet another ...

No new features are introduced in this segment. A simple function is added to make debug messages cleaner to write and the ...

Create a Person Class with Details in JavaScript In this video, you'll learn how to build a Person class in JavaScript that stores ...

When you pass an object to a method, you are passing a copy of the *reference* to that object. That lets you update an object's ...

In this short clip, a custom type is defined using generics to define a "predicate" or a simple method that takes an item of a certain ...

What is an iterator in Javascript? The video will answer this question and many more about iterators. If you are new to Javascript ...

Learn how to use lambda expressions in TypeScript so you never have to worry about what "this" is again. Learn more about "this" ...

Video Title: Find Common Elements by Comparator in JavaScript In this video, you'll learn how to find common elements between ...

In this video, I fix a defect revealed by refactoring to classes. I then use a custom type to define the allowable values of a property.

This series will explore TypeScript for JavaScript developers by taking a JavaScript app and transforming it piece by piece. In this ...

In this last step, learn how TypeScript helps you prepare for future versions of JavaScript by keeping pace with the latest specs.

Learn about support for generic types in TypeScript. The existing code has a "find" method that isn't running properly. In this video ...

Video Title: Flatten Object Keys into Paths in JavaScript In this video, you'll learn how to flatten a nested object so that each key ...

Video Title: Flatten an Array to a Specific Depth in JavaScript In this video, you'll learn how to flatten a nested array to a specified ...

Video Title: Convert Async Functions to Promises in JavaScript In this video, you'll learn how to convert an async function into a ...

Video Title: Initialize and Fill an Array in JavaScript In this video, you'll learn how to create and populate an array with a default ...

Video Title: Create a Reverse Range Array in JavaScript In this video, you'll learn how to generate an array of numbers in reverse ...

A bug has surfaced due to the way variables are captured in scope in JavaScript. Rather than wrap the call in additional code that ...

Video Title: Perform Async Left-to-Right Function Composition in JavaScript In this video, you'll learn how to compose ...

Interfaces specify signatures that classes must follow. Unlike other languages, interfaces in TypeScript aren't unique types on their ...