Any programming language has functions that go beyond the basic usage. It happens thanks to a successful design and a wide area of problems it tries to solve. One such function in JavaScript is the Array.from(): a workhorse allowing lots of useful transformations on JavaScript collections (arrays, array-like objects, iterables like string, maps, sets, etc). In this post, I will describe 5 use case
In this post, I present how you can create your own simple JavaScript obfuscator. To illustrate our example, we will apply our obfuscator on a simple fingerprinting script. In the remaining of this post, we consider we are working in a directory with the following structure: The src/ directory will contain the source of the JavaScript files we write, while the dist/ directory will contain transpil
So, you want to create amazing data visualizations on the web and you keep hearing about D3.js. But what is D3.js, and how can you learn it? Letâs start with the question: What is D3? While it might seem like D3.js is an all-encompassing framework, itâs really just a collection of small modules. Here are all of the modules: each is visualized as a circle - larger circles are modules with larger fi
Discussion on Hacker News This article and its topic were the subject of fairly detailed discussion on this thread here on Hacker News. Perusing through the comments should be well worth your time, albeit you might emerge completely confused by the experience. And noâtech guys do not hate each other, we just have a wide-ranging spectrum of view points. Introduction It is impossible to escape heari
You can discuss the course and related topics in our dedicated group on Discord https://study.cs.helsinki.fi/discord/join/fullstack. Please join the conversation! See here how to ask questions in a proper way Parts 0-8 and 13 of the course material is written by Matti Luukkainen. The content of part 9 is written by developers from Terveystalo. Part 10 is written by Kalle Ilves. The content of part
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Scott Helme Security researcher, entrepreneur and international speaker who specialises in web technologies. More posts by Scott Helme. A little while back I wrote a blog post about how "CSRF is dead". It focused on SameSite cookies, a powerful yet simple feature to protect your website against CSRF attacks. As powerful as it was, and as much as it will kill CSRF, you had to enable it on your site
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