Book Image

Advanced TypeScript Programming Projects

By : Peter O'Hanlon
Book Image

Advanced TypeScript Programming Projects

By: Peter O'Hanlon

Overview of this book

With the demand for ever more complex websites, the need to write robust, standard-compliant JavaScript has never been greater. TypeScript is modern JavaScript with the support of a first-class type system, which makes it simpler to write complex web systems. With this book, you’ll explore core concepts and learn by building a series of websites and TypeScript apps. You’ll start with an introduction to TypeScript features that are often overlooked in other books, before moving on to creating a simple markdown parser. You’ll then explore React and get up to speed with creating a client-side contacts manager. Next, the book will help you discover the Angular framework and use the MEAN stack to create a photo gallery. Later sections will assist you in creating a GraphQL Angular Todo app and then writing a Socket.IO chatroom. The book will also lead you through developing your final Angular project which is a mapping app. As you progress, you’ll gain insights into React with Docker and microservices. You’ll even focus on how to build an image classification program with machine learning using TensorFlow. Finally, you’ll learn to combine TypeScript and C# to create an ASP.NET Core-based music library app. By the end of this book, you’ll be able to confidently use TypeScript 3.0 and different JavaScript frameworks to build high-quality apps.
Table of Contents (13 chapters)

Creating a ToDo application with GraphQL and Angular

As is our custom now, we are going to start off by defining the requirements:

  • A user must be able to add a ToDo task consisting of a title, a description, and the date the task is due
  • Validation will ensure that these items are always set and that the due date cannot be before today
  • The user will be able to see a list of all tasks
  • The user will be able to delete a task
  • The user will be able to see overdue tasks (where an overdue task is one that has not been completed and the due date has passed)
  • The user will be able to edit a task
  • Data is transferred to the server, or from the server, using GraphQL
  • Transferred data will be saved to a MongoDB database

Creating our application

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