Wassim Chegham – @manekinekko

Météo

Du

Web

S01E03

TypeScript 4.3 Beta

Template Literals Type Improvements

type Color = "red" | "blue";
type Quantity = "one" | "two";

type SeussFish = `${Quantity | Color} fish`;

//---

declare let s1: `${number}-${number}-${number}`;
declare let s2: `1-2-3`;

// Works!
s1 = s2;

@manekinekko

TypeScript 4.3 Beta

ECMAScript #private Class Elements

class Foo {
    #someMethod() {}
    get #someValue() { return 100; }
}

new Foo().#someMethod();
//        ~~~~~~~~~~~
// error!
// Property '#someMethod' is not accessible
// outside class 'Foo' because it has a private identifier.

@manekinekko

TypeScript 4.3 Beta

Import Statement Completions

@manekinekko

npm v7.9.0

Workspaces (RFC)

// packag.json
{
    "name": "workspace-example",
    "version": "1.0.0",
    "workspaces": {
        "packages": [
            "packages/*"
        ]
    }
}

@manekinekko

VS Code 1.55

📓 Notebooks improvements
🍎 Updated macOS Big Sur icons
🍓 Official Raspberry Pi support

March 2021 release

@manekinekko

Web Authentication Level 2

@manekinekko

S01E07

Wassim Chegham – @manekinekko

TypeScript 4.3

Template Literals Type Improvements

type Color = "red" | "blue";
type Quantity = "one" | "two";

type SeussFish = `${Quantity | Color} fish`;

//---

declare let s1: `${number}-${number}-${number}`;
declare let s2: `1-2-3`;

// Works!
s1 = s2;

@manekinekko

TypeScript 4.3

ECMAScript #private Class Elements

class Foo {
    #someMethod() {}
    get #someValue() { return 100; }
}

new Foo().#someMethod();
//        ~~~~~~~~~~~
// error!
// Property '#someMethod' is not accessible
// outside class 'Foo' because it has a private identifier.

@manekinekko

TypeScript 4.3

override and --noImplicitOverride

class SpecializedComponent extends SomeComponent {
    override show() {
        // ...
    }
    override hide() {
        // ...
    }
}

@manekinekko

Web API Updates

@manekinekko

🎁 File Handling API

🎁 Handwriting Recognition API

🎁 Shared Element Transitions API*

 

Project Fugu updates

Angular 12

Moving Closer to Ivy Everywhere

@manekinekko

🎁 IVy by default
🎁 Deprecating Support for IE11
🎁 Build prod by default

Safari Updates

@manekinekko

🎁 Theme Color
🎁 Pull to Refresh (Safari-only)
🎁 Web Extensions (not sure if Safari-only)
🎁 WebGL2
🎁 SharePlay & Web Share 2

iOS 15 beta 1

JavaScript Hub at Microsoft

@manekinekko

Everything from Microsoft for JavaScript developers! 

🎁 Beginner resources
🎁 Announcements
🎁 Tools for JavaScript developers
🎁 Latest from the Web community

S02E02

Wassim Chegham – @manekinekko

TC39 Updates

@manekinekko

🎁 Stage 4 – Array.at(), Object.hasOwn(), Class Static Blocks

🎁 Stage 2 – Pipeline Operator, Change Array by Copy

🎁 Stage 1 –  USV String, Array.fromAsync(), BigInt Math...

What's new in Node core?

@manekinekko

// v14.13.1+
import url from "node:url";

// v16+
const url = require("node:url");

node: protocol

What's new in Node core?

@manekinekko

Cancel async operations with AbortController

const cancelRequest = new AbortController();

const response = await fetch("http://localhost:8080/api/data", {
  signal: cancelRequest.signal,
});

//...

cancelRequest.abort();

What's new in Node core?

@manekinekko

Built-in  RFC 4122 v4 UUIDs

// v15.6+
import { randomUUID } from "node:crypto";

console.log(randomUUID());
// 'c61809c8-e8db-4b09-9158-887eb48521c9'

What's new in Node core?

@manekinekko

promise-based APIs 

import dns from "node:dns/promises";

const resolver = new dns.Resolver();
const addresses = await resolver.resolve4("nodejs.org");
 
console.log({ addresses });

zx

@manekinekko

Writing scripts with JavaScript

const jsFiles = await globby("./src/**/*.js");
for (let path of jsFiles) {
  const newPath = path.replace('.js','.cjs');
  await $`mv ${path} ${newPath}`;
}

PartyTown (Experimental)

@manekinekko

Run Third-Party Scripts Inside Web Workers

<script>
  partytown = {
    forward: ['dataLayer.push', '_hsq.push', 'Intercom']
  };
</script>

Angular Sneak Peek

@manekinekko

Across The Multiverse

@manekinekko

@manekinekko

@LesBriquesDuWeb

Météo Du Web

By Wassim Chegham

Météo Du Web

Météo Du Web // Les Briques du Web

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