How statistics are calculated
We count how many offers each candidate received and for what salary. For example, if a Front-End Web developer with Yarn 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 Front-End Web tech & tools in 2024
Where is Yarn used?
Speedy Gonzales Package Management
- Yarn turbocharges your project setup faster than a caffeinated roadrunner, zipping through dependencies quicker than you can say "meep-meep!"
Workspaces Wonders
- Imagine a juggler managing flaming torches. Yarn Workspaces lets devs juggle multiple projects with a grace that defies gravity.
Time-Traveling with Lockfiles
- No Delorean needed! Yarn’s lockfiles let developers time-travel back to dependency states, outrunning timeline paradoxes in code.
Plugging In the Plugins
- Like a swiss army knife for coding, Yarn's extendable plugin system turns devs into MacGyvers of software tasks.
Yarn Alternatives
NPM (Node Package Manager)
NPM is the default package manager for Node.js, used for installing and managing dependencies.
Example:
npm install lodash
Pros:
- Extremely large ecosystem
- Integrated with Node.js
- Supports global package installation
Cons:
- Occasional performance issues
- Can produce nested node_modules
- Security vulnerabilities reported
PNPM (Performant npm)
PNPM is a fast, disk space-efficient package manager that utilizes hard links and symlinks to save space for node modules.
Example:
pnpm add react
Pros:
- Efficient storage mechanism
- Fast installation process
- Strict about package versions
Cons:
- Not as widely adopted as NPM or Yarn
- Could have issues with certain tools
- Lesser known, smaller community
Cnpm (China npm)
Cnpm is optimized for use in China to address the slow download speeds of NPM packages due to network issues with foreign servers.
Example:
cnpm install webpack
Pros:
- Fast in China
- Mirror of NPM packages
- Compatible with NPM workflows
Cons:
- Mainly beneficial for users in China
- Sometimes inconsistent with official NPM registry
- Lesser global adoption
Quick Facts about Yarn
When Spiders Weave Better Webs: The Birth of Yarn
Back in the ancient digital era of 2016, the tech wizards at Facebook, along with Exponent, Google, and Tilde, got together for a magical ritual to summon a new beast—Yarn was born! It stormed the lands of package management, promising faster, stabler, and more secure incantations to handle node packages than its elder kin, npm.
"Lock" and Load with Yarn
Yarn introduced a superhero shield called the ‘lockfile.’ It wrestled down package chaos by ensuring that what worked on one magician’s machine would work on all. Yarn's ‘yarn.lock’ file locked dependencies' versions in place, giving developers the exact same setup, thwarting the dreaded “but it works on my machine!” curse.
# Initializing a new Yarn project and creating a yarn.lock file
yarn init
Yarn: Back in Black with v2 and Beyarn'd
After thriving in the dev dungeons, Yarn v2, a.k.a Berry (because why not name it after a fruit?), rolled out in 2020. Some say it broke the wheel with features like Plug'n'Play and Zero Installs, turning old-school node_modules dir into ancient myth. Each update is like a new spell in a sorcerer’s grimoire, making Yarn v2 more mystical than ever.
# Upgrading to Yarn v2
yarn set version berry
What is the difference between Junior, Middle, Senior and Expert Yarn developer?
Seniority Name | Years of Experience | Average Salary (USD/year) | Quality-Wise | Responsibilities & Activities |
---|---|---|---|---|
Junior Yarn Developer | 0-2 | 40,000 - 60,000 | Requires supervision |
|
Middle Yarn Developer | 2-4 | 60,000 - 85,000 | Works independently |
|
Senior Yarn Developer | 4-7 | 85,000 - 120,000 | High-quality and innovation |
|
Expert/Team Lead | 7+ | 120,000 - 160,000 | Outstanding, sets standards |
|
Top 10 Yarn Related Tech
JavaScript
You know the drill, JavaScript is like the clingy friend you can't ignore, tirelessly driving modern web development. Yarn without JavaScript is like peanut butter without jelly – incomplete! As a Yarn maestro, you've got to finesse those JS skills to breathe life into nodes and make them dance to your console.logs.
const greeting = 'Hello Yarn World!';
console.log(greeting);
TypeScript
Ah, TypeScript, JavaScript's more uptight cousin. It adds a sprinkle of type safety to your projects, warding off those pesky runtime errors with as much enthusiasm as a cat chasing a laser pointer.
let isYarnReady: boolean = true;
console.log(`Is Yarn ready? ${isYarnReady}`);
Node.js
Node.js is the non-browser playground where JavaScript gets its backend groove on. It chews on your Yarn tasks faster than a kid with bubblegum. Together, they're like Batman and Robin of the JavaScript world, keeping your development speedy and efficient.
const http = require('http');
const server = http.createServer((req, res) => {
res.end('Server is yarnin’!');
});
server.listen(3000);
React
React – it's the cool kid on the block, letting you build dynamic UIs with the elegance of a synchronized swimming team. Yarn keeps all those React packages in check, ensuring they play nicely together. Think of it as the lifeguard at the React package pool party.
import React from 'react';
const App = () => <h1>Yarn + React = <3</h1>;
export default App;
Webpack
Webpack is the alchemist of web development, transmuting piles of assets into golden bundles of joy. With Yarn, you can manage Webpack's array of loaders and plugins like a wizard manages his potions – with a flick and a swish!
module.exports = {
entry: './app.js',
output: {
filename: 'bundle.js'
}
};
Babel
Babel is your time-traveling ally, taking futuristic JavaScript and making it intelligible to browsers that still think "fetch" is just a game for dogs. Combine it with Yarn to ensure your code is as fluent in vintage JavaScript as in the modern dialect.
const babel = require('@babel/core');
babel.transform('code', options, function(err, result) {
console.log(result.code);
});
ESLint
ESLint is the meticulous code janitor, tirelessly enforcing the rules like a grammar nazi at a spelling bee. With Yarn, keep your syntax spick-and-span and your style as consistent as a sitcom laugh track.
module.exports = {
"rules": {
"semi": ["error", "always"],
"quotes": ["error", "double"]
}
};
Express
Express is Node.js's minimalist sidekick, slipping through HTTP requests with the finesse of a cat burglar. It's so lean, even your Yarn lock file might feel pudgy in comparison. But together, they serve up web apps like a Michelin-star restaurant.
const express = require('express');
const app = express();
app.get('/', (req, res) => res.send('Express and Yarn sitting on a tree!'));
app.listen(3000);
Docker
Ahoy, matey! Docker's containers ship your code across the digital oceans without fear of the treacherous "it works on my machine" sea serpent. Yarn and Docker - a legendary duo ensuring smooth sailing from development to deployment.
FROM node:latest
WORKDIR /usr/src/app
COPY package*.json ./
RUN yarn install
COPY . .
CMD ["node", "server.js"]
Git
Git, the time-traveling custodian of your codebase, tracks your changes with the attentiveness of an overcaffeinated librarian. Pair it with Yarn to version-control your dependencies as meticulously as your source code, and you've got a vortex of development virtuosity.
git init
git add .
git commit -m "Yarn's first dance with Git"
git push -u origin master