Section 1.1: PDF Reading Automation

One useful automation script allows you to read and extract data from PDF files. The following code snippet demonstrates how to retrieve information, text, and the total number of pages from a PDF. This is particularly beneficial when dealing with multiple PDF documents.

npm install --save pdf-parse

// PDF Text Extraction

const fs = require('fs');

const pdf = require('pdf-parse');

var file = fs.readFileSync('test.pdf');

pdf(file).then(function(pdfdata) {

// Extract number of pages

console.log("Page num: ", pdfdata.numpages);

// Extract PDF info

console.log(pdfdata.info);

// Extract PDF version

console.log("Version: ", pdfdata.version);

// Extract PDF text

console.log(pdfdata.text);

});

Section 1.2: HTML Data Parsing

For web scraping, an effective script uses the popular HTML parser, Cheerio. Below is the code that extracts titles from HTML content.

npm install --save cheerio

// Parse HTML data

const cheerio = require('cheerio');

const ch = cheerio.load('Medium.com');

let title = ch('h1.title').text();

ch('h2').addClass('Hello World');

console.log(title); // Medium.com

console.log(ch.html()); // html>Hello there!

Section 2.1: Instagram Downloader

This script enables users to download Instagram profile pictures, images, and videos effortlessly. Check out the example below.

npm install --save instagram-profile-picture

// Insta Downloader in Node.js

const Insta = require('instagram-profile-picture');

// Extract Profile Pic

Insta('medium').then(user => {

console.log(user);

});

// Download Images

console.log(img);

});

// Download Videos

console.log(video);

});

Section 2.2: Lyrics Finder Script

Need to find song lyrics but only remember a line? This simple script allows you to input the artist and song title to retrieve the full lyrics.

npm install --save lyrics-finder

// Lyrics Finder

const Finder = require('lyrics-finder');

(async function(artist, title) {

let lyrics = await Finder(artist, title) || "Lyrics Not Found!";

console.log(lyrics);

})("Luis Fonsi", "Despacito");

Section 2.3: Web Automation with Puppeteer

To automate web tasks, the Puppeteer library is incredibly useful. Below is a script that takes a screenshot of a webpage.

npm install --save puppeteer

// Web Bot in Node.js

const puppeteer = require('puppeteer');

(async () => {

const driver = await puppeteer.launch();

const page = await driver.newPage();

await page.screenshot({ path: 'medium.png' });

await driver.close();

})();

The second video presents nine fantastic JavaScript project ideas for beginners. These projects can significantly enhance your coding portfolio.