Tutoriel TypeScript : Typer une fonction basée sur OpenApi

Typer une fonction basée sur OpenApi - Dans ce tutoriel je vous propose d’explorer un peu plus en profondeur les capacités de Typescript pour voir comment créer un type avancé basé sur une définition [OpenApi]


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Tutoriel TypeScript : Typer une fonction basée sur OpenApi

Tutoriel TypeScript : Typer une fonction basée sur OpenApi

Typer une fonction basée sur OpenApi - Dans ce tutoriel je vous propose d’explorer un peu plus en profondeur les capacités de Typescript pour voir comment créer un type avancé basé sur une définition [OpenApi]


The Definitive Guide to TypeScript & Possibly The Best TypeScript Book

TypeScript Deep Dive

I've been looking at the issues that turn up commonly when people start using TypeScript. This is based on the lessons from Stack Overflow / DefinitelyTyped and general engagement with the TypeScript community. You can follow for updates and don't forget to ★ on GitHub 🌹


  • Thanks for the wonderful book. Learned a lot from it. (link)
  • Its probably the Best TypeScript book out there. Good Job (link)
  • Love how precise and clear the examples and explanations are! (link)
  • For the low, low price of free, you get pages of pure awesomeness. Chock full of source code examples and clear, concise explanations, TypeScript Deep Dive will help you learn TypeScript development. (link)
  • Just a big thank you! Best TypeScript 2 detailed explanation! (link)
  • This gitbook got my project going pronto. Fluent easy read 5 stars. (link)
  • I recommend the online #typescript book by @basarat you'll love it.(link)
  • I've always found this by @basarat really helpful. (link)
  • We must highlight TypeScript Deep Dive, an open source book.(link)
  • Great online resource for learning. (link)
  • Thank you for putting this book together, and for all your hard work within the TypeScript community. (link)
  • TypeScript Deep Dive is one of the best technical texts I've read in a while. (link)
  • Thanks @basarat for the TypeScript Deep Dive Book. Help me a lot with my first TypeScript project. (link)
  • Thanks to @basarat for this great #typescript learning resource. (link)
  • Guyz excellent book on Typescript(@typescriptlang) by @basarat (link)
  • Leaning on the legendary @basarat's "TypeScript Deep Dive" book heavily at the moment (link)
  • numTimesPointedPeopleToBasaratsTypeScriptBook++; (link)
  • A book not only for typescript, a good one for deeper JavaScript knowledge as well. link
  • In my new job, we're using @typescriptlang, which I am new to. This is insanely helpful huge thanks, @basarat! link
  • Thank you for writing TypeScript Deep Dive. I have learned so much. link
  • Loving @basarat's @typescriptlang online book basarat.gitbooks.io/typescript/# loaded with great recipes! link
  • Microsoft doc is great already, but if want to "dig deeper" into TypeScript I find this book of great value link
  • Thanks, this is a great book 🤓🤓 link
  • Deep dive to typescript is awesome in so many levels. i find it very insightful. Thanks link
  • @basarat's intro to @typescriptlang is still one of the best going (if not THE best) link
  • This is sweet! So many #typescript goodies! link

Get Started

If you are here to read the book online get started.


Book is completely free so you can copy paste whatever you want without requiring permission. If you have a translation you want me to link here. Send a PR.

Other Options

You can also download one of the Epub, Mobi, or PDF formats from the actions tab by clicking on the latest build run. You will find the files in the artifacts section.

Special Thanks

All the amazing contributors 🌹


Share URL: https://basarat.gitbook.io/typescript/

Author: Basarat
Source Code: https://github.com/basarat/typescript-book/ 
License: View license

#typescript #opensource 

Kobe  Abshire

Kobe Abshire


TypeScript Program : Typer une fonction basée sur OpenApi

Dans ce tutoriel je vous propose d'explorer un peu plus en profondeur les capacités de Typescript pour voir comment créer un type avancé basé sur une définition [OpenApi](https://grafikart.fr/tutoriels/swagger-openapi-php-1160).


What is Base Protocol (BASE) | What is BASE token

Base Protocol (BASE) is a token whose price is pegged to the total market cap of all cryptocurrencies at a ratio of 1:1 trillion. BASE allows traders to speculate on the entire crypto industry with one token. The Base Protocol is built on the Ethereum blockchain, integrates a (Chainlink) oracle, and is launching on ((Uniswap)

As cryptocurrency enthusiasts, we’re sometimes divided on which digital assets to buy — bullish on certain projects and bearish on others.

But we all agree on one thing, which is that the overall cryptocurrency industry will achieve long-term growth and future adoption.

The Base Protocol makes it possible to invest with this consensus. BASE allows traders to speculate on the entire industry with one token.

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The Base Protocol is the world’s first and only tokenized cryptocurrency market tracker. By holding BASE tokens, users can get exposure to the performance of the entire cryptocurrency market. Unlike the index trackers currently operating in the traditional markets, there is no entry or exit fee or brokerage charges.

Index funds have consistently outperformed actively managed mutual funds. Until the launch of BASE, there was no real cryptocurrency market tracker that tracked the performance of the entire digital asset market. BASE will be useful for institutional investors and traders to diversify and hedge their crypto portfolios. BASE will also help new and existing retail investors to take out the guesswork and get exposed to the growth of all current and future digital assets entering the market.

The BASE token’s underlying protocol creates several additional use cases in DeFi, trading, venture capital, hedge funds and many other business sectors.

The Base Protocol mission is simple — to make it easy for everyone to benefit from the performance of the entire cryptocurrency market in a secure, decentralized and future-proof way.


It’s no doubt that a crypto industry ETF would be a valuable product for investors. But it is very challenging to create such a product through traditional means, as it would be almost impossible to manage portfolio ownership of 5,000+ assets. How would the portfolio manager weigh ownership of each asset as market cap dominance changes? How would they account for newly entering/exiting assets? Who would take on all the associated transaction and custodial fees? There are also various legal limitations that restrict the formation of such an instrument in many countries — and even if it could be formed, it would be a highly centralized product.

By simply pegging price to the total market capitalization of all cryptocurrencies, the Base Protocol cuts through all of these problems. BASE gives holders the same function as a traditional industry ETF without all of the centralized challenges that make such an ETF impossible.

BASE will offer new value for investors in the cryptocurrency ecosystem through an elegantly simple protocol — so valuable and so simple that you might be asking yourself:

How has this not been done before?

The answer is that it wasn’t possible until recently. This project couldn’t be achieved without a robust decentralized blockchain, proven oracle integrations, and new developments in the DeFi space. We founded the Base Protocol to build on these innovations and create BASE; one tokenized asset that represents speculation on all cryptocurrencies.


We’ve seen that there are many individuals who want to invest in cryptocurrencies, but don’t necessarily understand how they work. While the overview for each different crypto asset can be difficult to understand for a new user, the pitch for BASE is simple: it’s the way to invest in all of those crypto assets simultaneously. In this way, the Base Protocol can become an instrumental force in driving new adoption in the blockchain space.

We’ve also noticed that institutional investors have been introducing cryptocurrency investments to their portfolios. These institutions typically invest at a high level with great diversification covering multiple industries. Their cryptocurrency holdings are usually composed of just Bitcoin, or some handful mix of “blue chip” digital assets. By holding BASE, these institutions will gain exposure to the entire cryptocurrency industry — an objectively more diversified alternative.

In the same way that Bitcoin is the household name of cryptocurrencies, the Base Protocol aims to become the household name for general cryptocurrency investing. BASE’s vision is to become the primary channel of investment for new/existing cryptocurrency traders and institutional investors.

Would you like to earn token right now! ☞ CLICK HERE

Looking for more information…

☞ Website
☞ Explorer
☞ Source Code
☞ Social Channel
Message Board
☞ Coinmarketcap

Create an Account and Trade NOW


Thank for visiting and reading this article! I’m highly appreciate your actions! Please share if you liked it!

#blockchain #bitcoin #crypto #base protocol #base

Cayla  Erdman

Cayla Erdman


What’s New In Typescript 4.0?

Today I am going to talk about new features in Typescript 4.0.

TypeScript 4.0 comes with lots of new features to make JavaScript development easier.

Labeled Tuple Elements

You can label tuple elements.

You can write:

type Range = [start: number, end: number];

to restrict args to have a string and a number.

you can also write:

type Foo = [first: number, second?: string, ...rest: any[]];

to have rest entries in your tuple.

If your tuple has type Foo, then the tuple starts with a number and a string.

Then the rest of the entries can be anything.

Labels don’t require you to name your variables differently when destructuring.

For example, if you have:

function foo(x: [first: string, second: number]) {
  const [a, b] = x;

then you can name the destructured variables anything you want.

#software-development #typescript-with-react #typescript #typescript-4 #react native