If you’re building an app that contains any kind of real-time communication (chat, games etc), it’s likely that you’ll e

Luckily, the StatusBar module from React Native also exports imperative means of setting this config. So what if we could write a hook that makes these imperative calls when a screen focuses, so that we always have the right config? This is a hook I wrote for a project that does just so:

Handling the state of your WebSocket in a React Component can be a bit of a pain, and you’ve always got to remember to close your WebSocket on unmount, etc. In short, this leads to a lot of duplication if you make use of WebSockets in many places in your app.

React code is ugly. I’m not talking about any technical trait of the framework; I’m talking straightforward aesthetics, how the code looks on my screen, and the feelings it evokes.

When writing a React Native app using React Navigation, we often run into a particular problem. In short, the device’s status bar is controlled by rendering a StatusBar component. But if we have an app with multiple screens, where more than one screen is rendered at once, rather than being lazy-loaded, this approach may fail. This is because rendering this StatusBar updates the config under the hood, but only reflects the state when it was last rendered. What this means is if your app has screens A and B, even if you have A visible, if B rendered after A, the status bar will have the config from screen B, which is wrong for screen A.

Now if the user changes their color preference in your app’s settings, or, for example, the sun sets and your phone’s color scheme changes, this StatusBar will be aware of it and match the rest of the app. Here obviously we’re not taking into account the other methods in the StatusBar API, which would be a welcome enhancement.

My considerations about React’s beauty started when working on a side-project. As most coders with coding as their profession and hobbies, the difference between work and leisure is defined by the amount of pleasure you take. Of course, we aim our careers at making both undistinguishable, and though sometimes they are, when they’re not, you still want at least your “coding for relaxation” hours to be as pleasant as possible.

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of TRUE Kitchen and Kocktails, says he asked three separate tables — occupied by female diners — more than once to cease dancing. Kelley added that patrons were also standing atop restaurant furniture and pressing their hands onto his window glass. (I’d assume those hands were not spotless.) Despite the owner’s pleas, the performances continued until the straw snapped the camel’s spine. Kelley went off, addressing the entire restaurant, in an indignant manner, letting it be known that TRUE Kitchen and Kocktails did not condone “twerking and shit.” His reasoning was that 75% of his customers are female and he didn’t feel he could ask men to carry themselves in a respectable fashion if the women were behaving licentiously. Then he lowered the stock of his message by directing those who couldn’t behave accordingly to “get the fuck out.”

As mentioned before, React apps can get same-y. We often find ourselves maintaining the same behavior for lots of components, and hooks are a great way to reuse behavior and make maintenance and iteration speed lightning fast.

As mentioned before, React apps can get same-y. We often find ourselves maintaining the same behavior for lots of components, and hooks are a great way to reuse behavior and make maintenance and iteration speed lightning fast.

This hook is a little time-saver. Imagine the scenario — you’ve got a component with n buttons, all of which launch some async operation on press/tap/click etc. Keeping track of their loading states is a bit of a pain — you don’t want to have to maintain an object or array of loading booleans, as it’ll be easy to cause bugs — especially if the number of buttons can change over the component’s lifecycle! It looks like this:

This hook has lots of use cases for flexible WebSocket based applications, notably here chat, we can safely close the WebSocket when the chat is closed, opening it only when the chat is open.

Naturally, if, for some reason, React is unpleasant to me, and I want to spend time coding for pleasure, the obvious thing to do is not to use React. And I don’t, most of the time. But code, as we know, has a multifaceted perspective: you have code, the artifact, lines full of symbols you input to the computer, but you also have the result of your code, its output, the real-life implication of the ideas you expressed using a programming language. And I care, and I can derive equal or even greater pleasure from seeing my code interact with the real world.

Because the wrapper makes sure to return the promise that your async function returns, you can do all the usual things you’d want to do with a promise ( await , promise chaining, etc.).

Now we can set the config on each screen with just a call to useStatusBar and it’ll always be correct when the screen becomes focused. This hook-based alternative helps keep your markup clear of rendering StatusBar in every screen.

Code aesthetic, in this sense, is not something developers are used to caring about. We have more important worries. Aesthetics are subjective, hard to measure and the benefits of chasing it are unclear. It is not often you’ll see a developer raising their hand and the midst of a Stand-up meeting to tell their peers they’re not pleased with how the code looks on their screen. And I’m not sure someone should, but I’m coming from a different perspective.