Category: JavaScript 301

Python 101: Data Analysis Data, data, data. Everything you’ll find on the internet is data. It’s an inescapable part of what makes the internet amazing. But data is only good when useful and accurate. In this lesson, you’ll learn how to manipulate and analyse data using two of Python’s most popular data analysis libraries: Pandas…

Python 101: Web Scraping Ever wondered if you can automate how you collate data from sources online? Website scraping – the act of writing scripts to pull data from the internet – is one such way. BeautifulSoup is a Python library that helps you scrape data from HTML and XML files. It’s especially useful for…

JavaScript 301: Intro In this advanced course, you will go above and beyond what you’ve developed so far to design high-quality, scalable programs. This course is designed to expand on what you learned in our intermediate JavaScript 201 course. If you haven’t finished this already, please do so before moving onto this course, as it…

JavaScript 301: Learning Engine Internals JavaScript might seem magical on the surface. You write a few lines of code, and browsers or platforms know how to run your program seamlessly. In truth, the language is incredibly well designed, and both incredibly simple but exceptionally nuanced. To truly understand how JavaScript works, you need to look…

JavaScript 301: Learning Concurrency Imagine five Greek philosophers sitting around a circular table. Between each pair, there’s a fork. To eat, a philosopher needs to use both the fork on their left and the fork on their right. However, there’s a catch: only one philosopher can use a fork at a time. If each philosopher…

JavaScript 301: Learning Design Patterns As you dive deeper into JavaScript as a professional, you’ll eventually work on writing larger and more complex applications that are delivered to thousands, if not millions of people. To deliver scalable solutions that can handle load, you need to understand and develop different design patterns. Design patterns provide general…

JavaScript 301: Learning Metaprogramming One of JavaScript’s most powerful features is its ability to manipulate code with code. An ability known as metaprogramming, this allows you to interact with JavaScript objects in a dynamic way, and helps you write flexible, efficient code. For instance, you can manipulate code by using a proxy – that is,…

JavaScript 301: HTTP VS WebSockets The web isn’t just about loading static pages. Many programs often need to allow for real-time communication between users or resources, allowing you to receive updates as they happen. This lesson is all about JavaScript WebSockets, a protocol and interface for two-way communications between a browser and a server. WebSockets…

JavaScript 301: Learning Cross-Site Scripting When writing code for websites and web applications, security MUST be top priority. But in order to learn secure practice, it’s not enough to just be aware of the risks of bad code. A great programmer needs to have experience spotting vulnerable code, and be able to adjust code before…

JavaScript 301: Learning Secure Code Practices As an extension to our XSS lesson, it’s extremely important that you develop experience and awareness of good security practice. Before you start this lesson, we strongly advise that you make yourself aware of the common vulnerabilities documented at OWASP, and be familiar with how to prevent such risks.…