Corrected the link-extraction example to print linkUrls, the array it actually constructs. This targeted correction does not claim a new live-site benchmark.
Web scraping is the process of extracting necessary data from external websites. It’s a valuable skill that helps you gather large amounts of data from the internet for various purposes. However, it can be daunting if you don’t need what tools to use.
Making POST, PUT, and DELETE requests is a crucial web scraping and web testing technique. Still, this functionality is not included in Puppeteer's API as a separate function.
Let's check out the workaround for this situation and create a helper function to fix this out.
The earlier article described DOM Range selection as Ctrl+A/copy-paste and claimed it could recover text from sites using display optimizations. The example performed neither keyboard input nor clipboard copying, and the general recovery claim was unsupported. This refresh compares actual text returned by five methods on a controlled fixture. Code and captured outputs.
For the readable text of an already rendered page, start with page.$eval('body', body => body.innerText). Use textContent when you explicitly want descendant text that can include hidden content and script/style source. If the HTML already contains the data, a converter such as html-to-text can work without a browser.
Those methods produce different outputs. Below, the browser sees three dynamically populated products, while the raw HTTP response contains empty product placeholders. The examples show how that difference affects text extraction, and when to keep structured records instead of flattening the page.
Working with images in NodeJS extends your web scraping capabilities, from downloading the image with an URL to retrieving photo attributes like EXIF. How to achieve the image download and obtain the data?
This article is a part of the series on image downloading with different programming languages. Check out the other articles in the series:
This article will expose how to block specific resources (HTTP requests, CSS, video, images) from loading in Playwright. Playwright is Puppeteer's successor with the ability to control Chromium, Firefox, and Webkit. So I'd call it the second one of the most widely used web scraping and automation tools with headless browser support.
In this article, we'll take a look at how to submit forms using Playwright. This knowledge might be beneficial while scraping the web, as it allows to get the information from the target web page, which requires providing parameters before.
Looking for a Puppeteer guide? Check out: How to submit a form with Puppeteer?
In this article, we will share several ideas on how to download files with Playwright. Automating file downloads can sometimes be confusing. You need to handle a download location, download multiple files simultaneously, support streaming, and even more. Unfortunately, not all the cases are well documented. Let's go through several examples and take a deep dive into Playwright's APIs used for file download.
This guide is a part of the series on web scraping and file downloading with different web drivers and programming languages. Check out the other articles in the series:
Dynamic languages are helpful tools for web scraping. Scripting allows users to rapidly tie together complex systems or libraries and express ideas without dealing with memory management or build systems.
JavaScript is the most popularly used dynamic language, operating on every device with a web browser, and Node.js as a JS runtime proved to be a very successful software platform. Due to design mistakes, it became hard to evolve with an existing user base, so Deno was born to resolve all the problems. Let's find out how to scrape the web and dynamic websites with Deno.
Javascript (JS) becomes more popular as a programming language for web scraping. The whole domain becomes more demanded, and more technical specialists try to start data mining with a handy scripting language. Let's check out the main concepts of web scraping with Javascript and review the most popular libraries to improve data extraction flow.
As you know, Puppeteer is a high-level API to control headless Chrome, and it's probably one of the most popular web scraping tools on the Internet. The only problem is that an average web developer might be overloaded by tons of possible settings for a proper web scraping setup.
I want to share 6 handy and pretty obvious tricks that should help web developers to increase web scraper success rate, improve performance and avoid bans.