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: "You can change the port in the application.properties file."

A block of code is set as follows:

@SpringBootApplication
public class CardatabaseApplication {
  private static final Logger logger = LoggerFactory.getLogger(CardatabaseApplication.class);
  public static void main(String[] args) {
    SpringApplication.run(CardatabaseApplication.class, args);
    logger.info("Hello Spring Boot");
  }
}

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

import React from 'react';

const MyComponent = () => {
  // This is called when the button is pressed
  const buttonPressed = () => {
    alert('Button pressed');
  }

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

npx create-react-app myapp

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: "Download the latest Long-Term Support (LTS) version for your operating system."