To make this possible, Ryan Dahl, a skilled developer took Google Chrome's v8 Javascript Engine and embedded it with a C++ program named Node. When introducing NodeJS, the crux of the idea was to make Javascript capable of running not only client-side but also server-side. Servers, on the other hand, are capable of directly interacting with the computer and its resources, which allows them to read files or store records in a database. This means that Javascript is not the kind of programming language that can interact with or manipulate the computer or it's resources directly.
#BUILD A WEBSCRAPER NODE CODE#
When a website is loaded, Javascript is run by the browser's Javascript Engine and converted into a bunch of code that the computer can understand.įor Javascript to interact with your browser, the browser provides a Runtime Environment (document, window, etc.). Javascript is a simple and modern language that was initially created to add dynamic behavior to websites inside the browser. Understanding NodeJS: A brief introduction
Use multiple HTTP clients to assist in the web scraping process.Have a functional understanding of NodeJS.⭐ Make sure to check out the resources at the end of this article to learn more! Outcomes ✅ Some experience with ES6 Javascript (Optional).✅ Experience using DevTools to extract selectors of elements.Below are the recommended prerequisites for this article: However, if you have a firm understanding of Web Scraping but have no experience with Javascript, this post could still prove useful. This post is primarily aimed at developers who have some level of experience with Javascript. This article will explain how the vibrant ecosystem of NodeJS allows you to efficiently scrape the web to meet most of your requirements. Whether it's a web or mobile application, Javascript now has the right tools.
Javascript has become one of the most popular and widely used languages due to the massive improvements it has seen and the introduction of the runtime known as NodeJS.
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