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 their explanations.

Code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles are shown as follows: "Now we need to create a couple of folders inside the chapter1 folder named images, css, and js (JavaScript) to make your application manageable."

A block of code is set as follows:

<section> 
    <h2>Add your Ticket</h2> 
</section> 
<script> 
    var root = document.querySelector
    ('section').createShadowRoot(); 
    root.innerHTML = '<style>h2{ color: red; }</style>' + 
    '<h2>Hello World!</h2>'; 
</script>

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

<div className="container"> 
    <h1>Welcome to EIS</h1> 
    <hr/> 
        <div className="row"> 
            <div className="col-md-12 col-lg-12"> 
{this.props.children} 
            </div> 
        </div> 
</div>

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

npm install <package name> --save

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: "In the Dashboard page, your left-hand navigation shows the Settings link. Please click on that to set the Basic and Advanced settings for your app."