In this final lesson, we’re going to dive deep into a more complex example in which we combine mapped types, key remapping, template literal types, and indexed access types to statically type a highly dynamic JavaScript function in TypeScript. … more Read More
This lesson introduces the `?.` operator which is known as [optional chaining](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Optional_chaining). We’re going to look at how we can use `?.` to safely descend into an object … more Read More
This lesson introduces the `??` operator which is known as [nullish coalescing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Nullish_coalescing_operator). The `??` operator produces the value on the right-hand side if (and … more Read More
Reactivity systems are one of the key parts of modern front-end frameworks. They’re the magic wand which makes apps highly interactive, dynamic, and responsive. Understanding what a reactivity system is and how it can be applied in practice is a crucial … more Read More
Oleksii Trekhleb, software engineer at Uber, recently explored the use of dynamic programming to speed up a CPU-intensive content-aware image resizing algorithm. Developers may use content-aware resizing to fit images into a variety of enclosing contexts … more Read More
An Instagram giveaway, especially during the holiday season, usually goes like this: give someone a follow, drop a comment, and tag a friend. What if you could host your own giveaway without having to check to see if everyone entering has followed these … more Read More
We know how valuable in-app and web chat can be in crafting powerful customer engagement. In fact, when we launched our IP Messaging API (which later became known as Twilio Programmable Chat) in 2015, we were among the first to offer developers a fully-featured … more Read More
Many of us have encountered call forwarding use-cases, but have you faced issues in passing call context from the original call to the forwarded call across the PSTN (Public Switched Telephone Network)? In this tutorial, you will learn how to pass call … more Read More
Regular expressions are incredibly powerful but can be difficult to maintain. They’re a skill you learn on the job and, when the suits walk by, make you look incredibly smart if you have a few up on your screen. How can we solve the maintainability problem? … more Read More
