How statistics are calculated
We count how many offers each candidate received and for what salary. For example, if a DEX and CEX with React with a salary of $4,500 received 10 offers, then we would count him 10 times. If there were no offers, then he would not get into the statistics either.
The graph column is the total number of offers. This is not the number of vacancies, but an indicator of the level of demand. The more offers there are, the more companies try to hire such a specialist. 5k+ includes candidates with salaries >= $5,000 and < $5,500.
Median Salary Expectation – the weighted average of the market offer in the selected specialization, that is, the most frequent job offers for the selected specialization received by candidates. We do not count accepted or rejected offers.
Trending DEX and CEX tech & tools in 2024
Most popular Metaverse and Blockchain (Web 3.0) trends in 2024
- Blockchain and Cryptography
- Smart Contracts
- NFT Marketplaces
- Wallet and Web3 Integration
- DeFi Ecosystem
- Metaverse/GameFi
- Smart Contract Audit/Security
- DAO/dApps
- Blockchain Project/Product Manager
- Crypto Social Media Marketing
- Crypto and Web3 Community Management and Support
- Telegram Bots and Mini-Apps
Where is React used?
Social Media Shenanigans
- React powers the Big Blue – yes, Facebook itself. Keeps your aunty's cat pics scrolling smooth as butter.
The E-Commerce Escapade
- Online shopping addicts rejoice! Sites like Shopify are React-made to handle your midnight retail therapy.
Interactive Intensity in Games
- Gaming platforms level up with React, giving interactive experiences without rage-quitting load times.
The Mobile Merger
- React Native extends its tentacles into mobile apps, blurring the line between web and mobile app wizardry.
React Alternatives
Vue.js
Progressive JS framework for building user interfaces & single-page applications. Lightweight & flexible with a component-based architecture.
// Example: Defining a component
Vue.component('todo-item', {
props: ['todo'],
template: '{{ todo.text }}'
})
- Easier learning curve than React.
- Flexible integration with other libraries.
- Good documentation.
- Potentially lower performance for very large applications.
- Smaller community and ecosystem.
- Less corporate backing compared to React.
Angular
Platform and framework for building client-side applications using TypeScript. Full-scale data binding and dependency injection.
// Example: Component definition
@Component({
selector: 'app-root',
template: '
{{title}}
'
})
export class AppComponent {
title = 'Hello World';
}
- Robust framework with strong typing.
- Comprehensive feature set (routing, forms).
- Corporate backing by Google.
- Steep learning curve due to complexity.
- Verbose and complex code structure.
- May be overkill for small projects.
Svelte
Compiler-based framework that generates efficient code to update DOM. Emphasizes less code and leaner project structures.
// Example: Defining a reactive variable
<script>
let name = 'world';
</script>
<h1>Hello {name}!</h1>
- No virtual DOM - updates are applied directly.
- Enhanced reactivity with cleaner syntax.
- Reduced boilerplate code.
- Smaller community, fewer resources.
- Less mainstream, could impact hiring.
- Tooling is less mature compared to React.
Quick Facts about React
React's Debut as a Game-Changer
Imagine a world where web pages are as rigid as a starched shirt. Then 2013 hits, and Facebook says 'nah' and spins the game on its head with React. Birthed by Jordan Walke, a software engineer with a craving for dynamism, React splashes onto the scene. It's not just any old JavaScript library—this baby introduces JSX, a quirky syntax marriage between JavaScript and HTML, which lets developers talk to the UI like it's an old pal. Fun Fact: React was first used on Facebook's newsfeed in 2011 before becoming open-source!
Virtual DOM – React’s Secret Ninja
Gone are the days of the clunky, old-school DOM. React developers don a ninja mask with the Virtual DOM—a crafty shadow clone technique. Anytime something changes, this sneaky doppelganger updates ninja-fast without needing to disturb the entire DOM. It's like changing your socks without having to redo your entire outfit—smooth and efficient. This cool trick leaves other libraries in slow-mo, eating React's pixel dust.
The Rise of Hooks in React's Saga
Flash forward to 2018: React developers are chillaxing when suddenly React v16.8 drops, and BOOM—Hooks explode onto the scene. These little wonders let devs use state and other React features without writing a class. It's like having cheat codes for state management and side-effects. With a flick of a useState or useEffect, you're Harry Potter, casting spells in your functional components. No more class warfare. Magic!
function Example() {
const [count, setCount] = useState(0);
useEffect(() => {
document.title = `You clicked ${count} times`;
});
return (
You clicked {count} times
);
}
What is the difference between Junior, Middle, Senior and Expert React developer?
Seniority Name | Years of Experience | Average Salary (USD/year) | Responsibilities & Activities |
---|---|---|---|
Junior | 0-2 | $50,000 - $70,000 |
|
Middle | 2-5 | $70,000 - $100,000 |
|
Senior | 5+ | $100,000 - $140,000 |
|
Expert/Team Lead | 8+ | $140,000+ |
|
Top 10 React Related Tech
JavaScript (Sure, duh!)
Imagine trying to build a house without bricks. That's coding React without JavaScript. It's the Numero Uno, the backbone, the very essence of React. It's like the air for breathing or the water for a fish—absolutely essential, non-negotiable, and omnipresent in the React universe.
React (The Star of the Show)
The belle of the ball, the main squeeze, the showstopper. React's like that cool kid everyone wants to sit with at lunch. It brings components to the party, dances with JSX, and plays well with state and props.
const Greeting = () => <h1>Hello, React World!</h1>;
Redux (State’s Guardian)
When your states are more scattered than your thoughts on a Monday morning, Redux is the hero that swoops in. It's the keeper of states, the maestro conducting the symphony of actions, reducers, and stores.
import { createStore } from 'redux'
let store = createStore(todos, ['Use Redux'])
TypeScript (JavaScript with a Monocle)
It’s JavaScript who went to private school. TypeScript adds type-checking to keep your code as tight as your grandma's knitting. Messy types will have nowhere to hide!
HTML/CSS (The Fashion Designers)
Without HTML/CSS, your React components would be wandering the digital world naked. They give your app the style, the sass, the pizzazz! It's the makeover crew for your JSX elements.
const divStyle = {
color: 'blue',
backgroundImage: 'url(' + imgUrl + ')',
};
<div style={divStyle}>Stylish!</div>
React Router (The Path Finder)
Ever been lost in a new city? React Router is your GPS in the React metropolis. It'll navigate you through the concrete jungle of components without breaking a sweat.
Webpack (The Packing Genius)
Imagine packing for vacation with a space limit. Webpack's that genius who fits a month's stuff into a backpack. It bundles up your assets, minifies them, and serves them fresh.
Babel (The Translator)
It's like your polyglot friend who speaks modern JavaScript, but also translates it to a language your grandpa’s browser can understand. It ensures the cool new features you use are comprehensible to the ancient digital beings.
ESLint (The Code Nanny)
It's the stern governess for your code, keeping it clean and proper. ESLint will wag its finger at you for any code mischief and make sure your syntax is as neat as a pin.
Jest (The Test Master)
With Jest, your React components get their own personal drill sergeant ensuring they’re fit for service. Jest runs them through the gauntlet of tests and tells you if they're up to snuff or if they need to hit the gym.
test('two plus two is four', () => {
expect(2 + 2).toBe(4);
});