Articles about Javascript

How to Export Instance Methods from React Function Components

"You can have a little imperative React, as a treat."

When building modern applications with React, Function Components and Hooks are the de facto way to do it. Hooks make your code more declarative and easier to reason about (usually).

However, with all great hammers, you run the risk of everything looking like a nail. Occasionally, some more object-oriented solutions might be the right tool for the job. For example, what if you had a child component that contained a function that needed to be called from the parent? You might want an instance method, but we don't use Classes anymore!

Fear not -- you don't have to abandon Hooks to be able to call methods on child components. In this post, I'll show you how -- using forwardRef and useImperativeHandle.

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What is TypeScript Anyway?

To the seasoned developer this may seem like a silly question, but to developers who are self-taught, bootcamp trained, or even just have never come across a project in TypeScript - understanding exactly what it is and how to use it can be a bit of a mystery.

In this article we will try to explain the basic concepts behind TypeScript, and the reasons for using it.

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Behind The Scenes: Rails UJS

Rails UJS (Unobtrusive JavaScript) is the JavaScript library that helps Rails do its magic when we use options like remote: true for many of the html helpers.

In this article I'll try to explain the main concept of how this works to make it transparent for the user. Knowing a bit about the inner workings can help when debugging issues and also if we need to do something more complex than the provided interactions but reusing what's provided.

If you are using an old version of Rails and you are still using jquery-ujs, some code will not reflect how it does the magic, but most of these concepts apply as well (rails-ujs is a re-implementation of jquery-ujs removing the jquery dependency).

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