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MEAN Cookbook

MEAN Cookbook

By : McClay
3 (1)
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MEAN Cookbook

MEAN Cookbook

3 (1)
By: McClay

Overview of this book

The MEAN Stack is a framework for web application development using JavaScript-based technologies; MongoDB, Express, Angular, and Node.js. If you want to expand your understanding of using JavaScript to produce a fully functional standalone web application, including the web server, user interface, and database, then this book can help guide you through that transition. This book begins by configuring the frontend of the MEAN stack web application using the Angular JavaScript framework. We then implement common user interface enhancements before moving on to configuring the server layer of our MEAN stack web application using Express for our backend APIs. You will learn to configure the database layer of your MEAN stack web application using MongoDB and the Mongoose framework, including modeling relationships between documents. You will explore advanced topics such as optimizing your web application using WebPack as well as the use of automated testing with the Mocha and Chai frameworks. By the end of the book, you should have acquired a level of proficiency that allows you to confidently build a full production-ready and scalable MEAN stack application.
Table of Contents (13 chapters)
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Validating data with Angular form properties

Allowing users to input data into forms also allows users to input mistakes into the data. Validation is the process of checking whether any input data meets our application's expectations. In Angular, we use ngModel and its relationship to our input data-binding to inspect the state of our data and tell us whether it is valid.

Getting Ready

Let's add a title length validation to our blog post's title field. We don't want to allow any title shorter than 5 characters, or longer than 140 (we have to keep it tweet-able). We will also surface this error to our users when the title field is invalid and show them a warning with an explanation of what is wrong.

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