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1. Sucrase
Sucrase is an alternative to Babel that allows super-fast development builds. Instead of compiling a large range of JS features to be able to work in Internet Explorer, Sucrase assumes that you're developing with a recent browser or recent Node.js version.
alangpierce / sucrase
Super-fast alternative to Babel for when you can target modern JS runtimes
Sucrase
Quick usage
yarn add --dev sucrase # Or npm install --save-dev sucrase
node -r sucrase/register main.ts
Using the ts-node integration:
yarn add --dev sucrase ts-node typescript
./node_modules/.bin/ts-node --transpiler sucrase/ts-node-plugin main.ts
Project overview
Sucrase is an alternative to Babel that allows super-fast development builds Instead of compiling a large range of JS features to be able to work in Internet Explorer, Sucrase assumes that you're developing with a recent browser or recent Node.js version, so it focuses on compiling non-standard language extensions: JSX, TypeScript, and Flow. Because of this smaller scope, Sucrase can get away with an architecture that is much more performant but less extensible and maintainable. Sucrase's parser is forked from Babel's parser (so Sucrase is indebted to Babel and wouldn't be possible without it) and trims it down to a focused subset of what Babel solves. If it fits your use case, hopefully Sucrase…
2. React Hooks in Svelte
React hook examples ported to Svelte
joshnuss / react-hooks-in-svelte
React hook examples ported to Svelte
React Hooks in Svelte
React Hook examples ported to Svelte.
New 📣: React ⇆ Svelte Cheatsheet
useState
In Svelte, const [varName, set] = useState(initialValue)
becomes let varName = initialValue
. The setter function is replaced with JavaScript's assignment operator =
.
useEffect
In React, there are 3 ways to useEffect()
.
- With
null
dependencies:useEffect(fn)
. This runs on every render. - With an empty array as dependencies:
useEffect(fn, [])
. This runs during mount, and cleanup function runs on unmount. - With a list of dependency vars:
useEffect(fn, [a, b, c])
. This reavaulates whenever a dependency changes. The cleanup runs whenever dependencies change and during unmount.
This is an example of #2, where the callback runs when component is mounted and cleanup runs when unmounted.
useMemo
In Svelte, all reactive statements are memoized. Instead of const
…
3. Hiring Without Whiteboards
A list of companies (or teams) that don't do "whiteboard" interviews. "Whiteboards" is used as a metaphor, and is a symbol for the kinds of CS trivia questions that are associated with bad interview practices.
poteto / hiring-without-whiteboards
⭐️ Companies that don't have a broken hiring process
Hiring Without Whiteboards
A list of companies (or teams) that don't do "whiteboard" interviews. "Whiteboards" is used as a metaphor, and is a symbol for the kinds of CS trivia questions that are associated with bad interview practices. Whiteboards are not bad – CS trivia questions are. Using sites like HackerRank/LeetCode probably fall into a similar category.
The companies and teams listed here use interview techniques and questions that resemble day-to-day work. For example, pairing on a real world problem or a paid/unpaid take home exercise. Read (and contribute to) our recommendations for ways to conduct better interviews.
tl;dr
- Discussing a real world problem (with or without whiteboard) is 👍
- Solving CS trivia, technical puzzles, riddles, brainteasers (with or without whiteboard) is 👎
Please open a PR to be added.
Duds
If you've been through an interview with one of these companies recently, and your experience suggests otherwise from their…
4. Fragstore
Tiny (~800 B), easy and simple library to manage your React state. After a store update -> only components that use the updated property are rendered.
Teaful
Tiny, easy and powerful React state management library
What advantages does it have? ✨
- 📦 ・Tiny: Less than 1kb package to manage your state in React and Preact.
- 🌱 ・Easy: You don't need actions, reducers, selectors, connect, providers, etc. Everything can be done in the simplest and most comfortable way.
- 🚀 ・Powerful: When a store property is updated, only its components are re-rendered. It's not re-rendering components that use other store properties.
Guide 🗺
5. FrontEndCollection
Notes for Front-end Software Engineers. Covers common data structure and algorithms, basic web concepts, HTML & CSS & Javascript.
cheatsheet1999 / FrontEndCollection
Notes for Fullstack Software Engineers. Covers common data structure and algorithms, web concepts, Javascript / TypeScript, React, and more!
FrontEndCollection (Keep updating everyday, hopefully...)
Web Development Basics
HTML 📖
1. What happens when you type in a URL
2. GET vs POST
3. What can we do to improve a website's performance?
4. HTML5 offline storage mechanism
5. Common time and space-complexity
6. What has been deprecated, and what is new on HTML5?
7. How the DOM really works?
8. Inline elements, Block elements, and what are the differences?
9. Several ways to call a function
10. A brief introduction of the differences between "src" and "href"
11. A brief introduction of Call, Apply, Bind
12. Time and space complexity for common sorting algorithm
CSS 💎
1. What is the difference between display:none and visibility:hidden style?
2. What is BFC(Block Formatting Context)
JavaScript Concepts 📦
this
keyword
Bubbling and Capturing
Execution Context
Higher Order Function
Event Loop
Closures
Throttling and Debouncing
Promises
JavaScript Demos 🖥
React Concepts
…6. ml5
ml5.js aims to make machine learning approachable for a broad audience of artists, creative coders, and students. The library provides access to machine learning algorithms and models in the browser, building on top of TensorFlow.js.
ml5js / ml5-library
Friendly machine learning for the web! 🤖
Read our ml5.js Code of Conduct and software licence here!
This project is currently in development.
Friendly machine learning for the web!
ml5.js aims to make machine learning approachable for a broad audience of artists, creative coders, and students. The library provides access to machine learning algorithms and models in the browser, building on top of TensorFlow.js.
The library is supported by code examples, tutorials, and sample data sets with an emphasis on ethical computing. Bias in data, stereotypical harms, and responsible crowdsourcing are part of the documentation around data collection and usage.
ml5.js is heavily inspired by Processing and p5.js.
Please read our Code of Conduct, which establishes our commitment to make ml5.js a friendly and welcoming environment.
Usage
Before getting started with ml5.js, review our Code of Conduct. There are several ways you can use the ml5.js library:
- You can use the latest version…
7. TypeScript Boilerplate for 2021
A modern TypeScript project setup, for Node.js and browsers (using esbuild).
metachris / typescript-boilerplate
A modern TypeScript project setup, for Node.js and browsers
TypeScript Boilerplate for 2022
TypeScript project boilerplate with modern tooling, for Node.js programs, libraries and browser modules. Get started quickly and right-footed 🚀
- TypeScript 4
- Optionally esbuild to bundle for browsers (and Node.js)
- Linting with typescript-eslint (tslint is deprecated)
- Testing with Jest (and ts-jest)
- Publishing to npm
- Continuous integration (GitHub Actions / GitLab CI)
- Automatic API documentation with TypeDoc
See also the introduction blog post: Starting a TypeScript Project in 2021.
Getting Started
# Clone the repository (you can also click "Use this template")
git clone https://github.com/metachris/typescript-boilerplate.git your_project_name
cd your_project_name
# Edit `package.json` and `tsconfig.json` to your liking
...
# Install dependencies
yarn install
# Now you can run various yarn commands:
yarn cli
yarn lint
yarn test
yarn build-all
yarn ts-node <filename>
yarn esbuild-browser
...
- Take a look at all the scripts in
package.json
- For publishing to npm, use
yarn publish
(or…
8. React hooks for Material UI
React hooks for Material UI. For each state, each hook accepts an optional default state and returns a state-setting utility function.
CharlesStover / use-mui
React hooks for Material UI
React hooks for Material UI
Install
-
npm install use-mui
or yarn add use-mui
Supported components
For each state, each hook accepts an optional default state and returns a
state-setting utility function (that you should not need but is available to fit
any edge cases your may have). For example: a component with a value
prop will
have an accompanying hook with an optional defaultValue
parameter property and
setValue
state property; a component with an open
prop will have an
accompanying hook with an optional defaultOpen
parameter property and
setOpen
state property.
function MyTextField() {
const { handleChange, setValue, value } = useTextField({
defaultValue: 'Loading...',
});
useEffect(() => {
getAsyncValue()
.then(asyncValue => {
setValue(asyncValue);
})
.catch(() => {
setValue('');
}
…9. Animated Emojis
Library with animated emojis.
beerose / animated-emojis
Animated emojis 😢💗😡😨😊
Animated Emojis
Library with animated emojis.
Docs
https://animated-emojis.netlify.com/
Install
yarn add animated-emojis # npm i animated-emojis
API
size: Number | undefined
animate: Boolean | undefined
Setup
yarn # npm i
Run docs
yarn docz:dev # npm run docz:dev
Build lib
yarn build # npm run build
10. Checka11y.css
A CSS stylesheet to quickly highlight a11y concerns.
jackdomleo7 / Checka11y.css
A CSS stylesheet to quickly highlight a11y concerns.
Checka11y.css
A CSS stylesheet to quickly highlight a11y concerns.
Lightweight • Modern • Accessibile • Customisable • Simple
The first line of defence for testing accessibility.
Designed to quickly highlight some common accessibility errors and warnings that can be easily and quickly rectified.
Recommended before turning to automation tools and scanners such as Lighthouse on Chrome.
Remember not to push this to production!
A great tool for:
- Websites and web applications to begin improving their accessibility.
- Developers and testers/QA to learn more about accessibility and creating accessible websites and applications.
Features
Our features are always checked against the W3C accessibility guidelines.
A list of some common a11y concerns Checka11y.css will check for and highlight :
- Check for invalid HTML elements nested inside of
<a>
and<button>
- Check for missing
alt
attributes on images - Check for media that is set to
autoplay
- Check
<li>
is the only direct child of<ol>
…
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Top comments (2)
I'm amazed to see Agrippa as the 4th place in top growth in the last 30 days! Super grateful to all of our supporters!