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: "Mount the downloaded WebStorm-10*.dmg disk image file as another disk in your system."

A block of code is set as follows:

for(let j=0;j<designationCount;j++){
  designations+= `, ${data_json[i].designation.title[j]}`;
}

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

const http = require('http');
const port = 3300;
http.createServer((req, res) => {
    res.writeHead(200, { 
      "Content-Type": "application/json"
    });
    res.write(JSON.stringify({
      greet : "Hello Readers!"
    }));
    res.end();
}).listen(port);
console.log(`Node Server is running on port : ${port}`)

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

$ mkdir test-node-app
$ cd test-node-app
$ npm init

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: "Select System info from the Administration panel."