JS Developers (@javascript)

If you're looking for a great place to learn JavaScript, here's https://javascript.info/, which is super clean and has a good foundation.

From #JQuery to #React, #Redux, Context, Zustand, Signals… all attempts at UI taming become monsters in large projects. The problem isn't the library; it's that the DOM is complex, and JS wasn't designed for massive applications.

#JavaScript #FrontEnd #Developers #InterviewQuestions

In many interviews you can expect something like reverse an array. But do you know what's the best approach to show your seniority?

Level 1: arr.reverse();
Level 2: const reversed = [...arr].reverse();
Level 3

      const arr = [1, 2, 3, 4];
const reversed = arr.reduce((acc, item) => [item, ...acc], []);
console.log(reversed); // [4, 3, 2, 1]

JS was designed with too much flexibility: 0 == false, [] == ![]. This leads to invisible bugs, especially in projects without static typing. That's why many are fleeing to #TypeScript: it's not a fad, it's survival. #JavaScript

Developers could learn about medicine too and create cool things.

#MobileDev #AndroidDevelopment #ReactNative #PWA

Starting an Android app? 🚀
This is what you need to firstly:

Define your goal. Do you need performance, reach, or fast delivery?

👉 Angular + PWA: best for web-first apps with offline support.
👉 React Native: balance of native feel & cross-platform code.
👉 Native Android: ultimate performance & full device access.

Choose the path that matches your product vision, not just the hype.

Webpack, Rollup, Parcel, esbuild, Vite… every two years a new “savior” appears. #Developers spend more time migrating than building.

Did you know you can create tables in your browser console?

I bet you didn't know this. In a technical interview, you might be asked how to get the last element of an array. Well, there are three options, and you might like the last one best.

const latest = arr[arr.length - 1];
const latest = arr.slice(-1)[0];

And this one 😜
#JavaScript #FrontEnd #Developers #InterviewQuestions

      const arr = [1, 2, 3, 4];
const latest = arr.at(-1);
console.log(latest); // 4