Conventions

In this book, you will find a number of text styles that distinguish between different kinds of information. Here are some examples of these styles and an explanation of their meaning.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "A TypeScript file is saved with a .ts extension."

A block of code is set as follows:

x = 20; 
// after a few meaningful minutes  
x = 'nah! It's not a number any more';

Any command-line input or output is written as follows:

npm install -g @angular/cli

New terms and important words are shown in bold. Words that you see on the screen, for example, in menus or dialog boxes, appear in the text like this: "We will be writing three methods, one to get a random gif, one to get the latest trends, and one to search the Gif API with a keyword."

Warnings or important notes appear in a box like this.

Tips and tricks appear like this.