Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "The native array operations have varying time complexities. Let's take Array.prototype.splice and Array.prototype.push."

A block of code is set as follows:

class Stack {
    constructor() {
    
    }
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

var express = require('express');
var app = express();
var data = require('./books.json');
var Insertion = require('./sort/insertion');

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

ng new back-button

Bold: Indicates a new term, an important word, or words that you see onscreen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "When the user clicks on the back button, we will navigate to the previous state of the application from the stack."