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Frontend Development 2019
What's in your stack?
@stefanjudis
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Frontend
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Frontend
2011
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Frontend
today
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Frontend
today
It became
Engineering
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Frontend
today
Engineering
with new tools
and practices
every year...
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No content
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What's in your
stack 2019?
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What's in your
stack 2020?
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What's in your
stack 2021?
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Highly
opinionated...
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I'm not covering
religious questions...
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Not covering
religious questions
It doesn't
matter!
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No content
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No content
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“
Nobody loves what prettier does
to their syntax.
Everyone loves what prettier
does to their coworkers' syntax.
"Grensley" on Reddit
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No content
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Ask yourself
"Why?"
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Solve
a problem
Keep you
productive
Make you
happy
A tool should...
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medium.com/@dan_abramov/you-might-not-need-redux-be46360cf367
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The web platform
is a tool, too!
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A big
ecosystem change
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Chromium Webkit Gecko
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No content
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We got more
cross-browser
supported features...
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... but let's see where
this goes.
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The good stuff
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Grid
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www.stefanjudis.com/today-i-learned/
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.o-list-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
}
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.o-list-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
}
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.o-list-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
}
.area-javascript {
@media (min-width: 70em) {
grid-row: 2 / 5;
}
}
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.o-list-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
}
.area-javascript {
@media (min-width: 70em) {
grid-row-start: 2;
grid-row-end: 5;
}
}
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Grid
support
caniuse.com/#feat=css-grid
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cssgrid.io
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font-display
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www.zachleat.com/foitfout/
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@font-face {
font-family: "Open Sans Regular";
font-weight: 400;
font-style: normal;
src: url("fonts/OpenSans-Regular-BasicLatin.woff2") format("woff2");
// browser default behaviour
font-display: auto;
}
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@font-face {
font-family: "Open Sans Regular";
font-weight: 400;
font-style: normal;
src: url("fonts/OpenSans-Regular-BasicLatin.woff2") format("woff2");
// browser default behaviour
// font-display: auto;
// fallback font first
// -> custom font when available
font-display: swap;
}
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@font-face {
font-family: "Open Sans Regular";
font-weight: 400;
font-style: normal;
src: url("fonts/OpenSans-Regular-BasicLatin.woff2") format("woff2");
// browser default behaviour
// font-display: auto;
// fallback font first
// -> custom font when available
// font-display: swap;
// invisible until custom font is loaded (FOIT deluxe)
font-display: block;
}
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@font-face {
font-family: "Open Sans Regular";
font-weight: 400;
font-style: normal;
src: url("fonts/OpenSans-Regular-BasicLatin.woff2") format("woff2");
// browser default behaviour
// font-display: auto;
// fallback font first
// -> custom font when available
// font-display: swap;
// invisible until custom font is loaded (FOIT deluxe)
// font-display: block;
// invisible very short then fallback font
// -> custom font when available
font-display: fallback;
}
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font-display
support
caniuse.com/#feat=css-font-rendering-controls
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No content
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www.zachleat.com/web/comprehensive-webfonts/
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:focus-within
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No content
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:focus-within
support
caniuse.com/#feat=css-focus-within
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Observer power
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const options = {
threshold: 0
};
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const options = {
threshold: 0
};
const intersectionObserver = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
const {target} = entry;
target.src = target.dataset.src;
intersectionObserver.unobserve(target);
}
});
}, options);
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const options = {
threshold: 0
};
const intersectionObserver = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
const {target} = entry;
target.src = target.dataset.src;
intersectionObserver.unobserve(target);
}
});
}, options);
[...document.querySelectorAll('.lazyload')]
.forEach(elem => intersectionObserver.observe(elem));
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const options = {
threshold: 0
};
const intersectionObserver = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
if (entry.isIntersecting) {
const {target} = entry;
target.src = target.dataset.src;
intersectionObserver.unobserve(target);
}
});
}, options);
[...document.querySelectorAll('.lazyload')]
.forEach(elem => intersectionObserver.observe(elem));
Congratulations,
that's lazy loading!
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Intersection
Observer
Mutation
Observer
Performance
Observer
Resize
Observer
Reporting
Observer
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No content
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Speaking of lazy
loading...
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addyosmani.com/blog/lazy-loading/
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loading
support
caniuse.com/#feat=loading-lazy-attr
*
* behind a flag
* ** ** **
** polyfillable
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The future is bright
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The future is bright
Images will get
super powers.
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webp
the winning image format?
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jpeg (Q65) 399KB webp 121KB
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bitsofco.de/why-and-how-to-use-webp-images-today/
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webp
support
caniuse.com/#feat=webp
*
* "experimenting"
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Evergreen browsers
evolve quickly.
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The next
JavaScript
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ESM
(EcmaScript modules)
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ES6 modules tryout
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'use strict'; // strict mode by default
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'use strict'; // strict mode by default
console.log(this); // undefined
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'use strict'; // strict mode by default
console.log(this); // undefined
const a = 1; // local to the script
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'use strict'; // strict mode by default
console.log(this); // undefined
const a = 1; // local to the script
import main from './main.js';
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// loaded asynchronous
// executed after finished HTML parsing
'use strict'; // strict mode by default
console.log(this); // undefined
const a = 1; // local to the script
import main from './main.js';
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ESM
support
caniuse.com/#feat=es6-module
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www.contentful.com/.../es6-modules-support-lands-in-browsers-is-it-time-to-rethink-bundling/
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www.contentful.com/.../es6-modules-support-lands-in-browsers-is-it-time-to-rethink-bundling/
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No content
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No content
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No content
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The future
is there!
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nodejs.org/api/esm.html
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The power of types
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www.typescriptlang.org
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www.typescriptlang.org
"Who needs that?"
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No content
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export async function migration (migrationCreator: Function): Promise {
// ...
}
The async function migration accepts the argument
migrationCreator of type Function and returns a
Promise that resolves with a collection of type Intent.
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export async function migration (migrationCreator: Function, makeRequest: Function): Promise {
// ...
}
test/unit/bin/lib/config.spec.ts
test/unit/lib/content-types-in-chunks.spec.ts
test/unit/lib/deleted-ct-entries.spec.ts
test/unit/lib/fetcher.spec.ts
test/unit/lib/intent-list/intent-list.spec.ts
src/lib/migration-steps/index.ts
...
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github.com/webpack/webpack/pull/6862
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No content
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Take all the safety and
help you can get for
large scale applications.
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PWAs will become
the standard
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Reliable Fast Engaging
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The holy "service worker"
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jakearchibald.github.io/isserviceworkerready/
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self.addEventListener('fetch', function(event) {
event.respondWith(
caches.match(event.request)
.then(function(response) {
// Cache hit - return response
if (response) {
return response;
}
return fetch(event.request);
}
)
);
});
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developers.google.com/web/tools/workbox/
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importScripts('https://storage.googleapis.com/.../workbox-sw.js');
workbox.routing.registerRoute(
new RegExp('(/|.*\.css)'),
workbox.strategies.networkFirst()
);
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importScripts('https://storage.googleapis.com/.../workbox-sw.js');
workbox.routing.registerRoute(
new RegExp('(/|.*\.css)'),
workbox.strategies.networkFirst()
);
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Know how it works but
use what is out there.
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No content
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The web truly becomes
an application platform.
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GraphQL
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“
Backend Engineer:
Hmm. So you’re saying this “GraphQL” will allow any
web or native engineer to arbitrarily query basically any
field in any backend service, recursively, however they
want, without any backend engineers involved?
Frontend Engineer:
Yeah, right? It’s amazing!
[…silence…]
Backend Engineer:
Guards, seize this person.
medium.com/airbnb-engineering/reconciling-graphql-and-thrift-at-airbnb-a97e8d290712
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No content
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One request per
resource
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No content
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POST
query {
course (id: "1toEOumnkEksWakieoeC6M") {
fields {
title
slug
skillLevel
}
}
...
}
{
"data": {
"course": {
"fields": {
"title": "Hello Contentful",
"slug": "hello-contentful",
"skillLevel": "beginner"
}
}
...
}
}
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POST
query {
course (id: "1toEOumnkEksWakieoeC6M") {
fields {
title
slug
skillLevel
}
}
...
}
{
"data": {
"course": {
"fields": {
"title": "Hello Contentful",
"slug": "hello-contentful",
"skillLevel": "beginner"
}
}
...
}
}
One request for
everything
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No content
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github.com/prisma/graphql-playground
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API
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No content
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No content
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No content
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As an API provider
life becomes easier.
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GraphQL will change
the way we work
completely.
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GraphQL will lower
the barrier for
Frontend developers.
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New approach
to static sites
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SSG
Build tool
content & templates
CSS & JavaScript
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SSG
Build tool
content & templates
CSS & JavaScript
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SSG
Build tool
content & templates
CSS & JavaScript
Constant
context switch
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SSG
Build tool
content & templates
CSS & JavaScript
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SSG
Build tool
content & templates
CSS & JavaScript
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SSG
Build tool
content & templates
CSS & JavaScript
API data has to
be written to disk
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SSG
Build tool
content & templates
CSS & JavaScript
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No content
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Universal
JavaScript Apps
(completely JS driven)
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No content
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Rich
ecosystem
Unified
code base
Cutting edge
technologies
Advantages
Developer
tooling
Static
HTML
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www.contentful.com/blog/2018/04/11/new-era-static-sites-rise-future/
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No content
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No content
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www.gatsbyjs.org/blog/2018-10-04-journey-to-the-content-mesh
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Every website is a
web app and every
web app is a website.
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#0CJS
(Zero-Config JavaScript)
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Bundlers
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Executive webpack
configuration engineer
Senior webpack
config manager
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No content
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parceljs.org
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Demo
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No content
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Works also with
Typescript, Sass, ...
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No content
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Toolkits
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Improved DX
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Improved DX
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{
"name": "hello-world-react",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.4.0",
"react-dom": "^16.4.0",
"react-scripts": "3.0.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
}
}
{
"name": "hello-world-vue",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
"dependencies": {
"vue": "^2.5.16"
},
"devDependencies": {
"@vue/cli-plugin-babel": "^3.0.0-beta.15",
"@vue/cli-plugin-eslint": "^3.0.0-beta.15",
"@vue/cli-service": "^3.0.0-beta.15",
"vue-template-compiler": "^2.5.16"
},
}
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{
"name": "hello-world-react",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.4.0",
"react-dom": "^16.4.0",
"react-scripts": "3.0.0"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
}
}
{
"name": "hello-world-vue",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
"dependencies": {
"vue": "^2.5.16"
},
"devDependencies": {
"@vue/cli-plugin-babel": "^3.0.0-beta.15",
"@vue/cli-plugin-eslint": "^3.0.0-beta.15",
"@vue/cli-service": "^3.0.0-beta.15",
"vue-template-compiler": "^2.5.16"
},
}
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{
"name": "hello-world-react",
"version": "0.1.0",
"private": true,
"dependencies": {
"react": "^16.4.0",
"react-dom": "^16.4.0",
"react-scripts": "1.1.4"
},
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject"
}
}
{
"name": "hello-world-vue",
"version": "0.1.0",
"private": true,
"scripts": {
"serve": "vue-cli-service serve",
"build": "vue-cli-service build",
"lint": "vue-cli-service lint"
},
"dependencies": {
"vue": "^2.5.16"
},
"devDependencies": {
"@vue/cli-plugin-babel": "^3.0.0-beta.15",
"@vue/cli-plugin-eslint": "^3.0.0-beta.15",
"@vue/cli-service": "^3.0.0-beta.15",
"vue-template-compiler": "^2.5.16"
},
}
A single
dependency
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github.com/reyronald/awesome-toolkits
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Good tools should
just work,
but should also be
configurable.
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Easy to use
automation tools
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Testing
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“
I love writing end-to-end tests!
said no one ever...
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www.cypress.io
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No content
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www.youtube.com/watch?v=zTHQqiu_y0Q
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Utilities
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Wrong or broken links
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Does anyone remember
this friend?
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pptr.dev
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
await browser.close();
})();
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => {
});
await browser.close();
})();
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => {
return [...
[...document.querySelectorAll('a')]
.reduce((acc, {href}) => acc.add(href) && acc, new Set())
];
});
await browser.close();
})();
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => {
return [...
[...document.querySelectorAll('a')]
.reduce((acc, {href}) => acc.add(href) && acc, new Set())
];
});
await browser.close();
})();
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => {
return [...
[...document.querySelectorAll('a')]
.reduce((acc, {href}) => acc.add(href) && acc, new Set())
];
});
await browser.close();
})();
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const puppeteer = require('puppeteer');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => { /* ... */ });
await browser.close();
})();
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const puppeteer = require('puppeteer');
const fetch = require('node-fetch');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => { /* ... */ });
// map URLs to include status code
urls = await Promise.all(urls.map(href => {
return new Promise(async resolve => {
const {status} = await fetch(href);
resolve({
url: href,
status
});
})
}));
await browser.close();
})();
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const puppeteer = require('puppeteer');
const fetch = require('node-fetch');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => { /* ... */ });
// map URLs to include status code
urls = await Promise.all(urls.map(href => { /* ... */ }));
await browser.close();
})();
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const puppeteer = require('puppeteer');
const fetch = require('node-fetch');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => { /* ... */ });
// map URLs to include status code
urls = await Promise.all(urls.map(href => { /* ... */ }));
// filter invalid URLs
const invalidLinks = urls
.filter(href => href.status !== 200)
.map(({url}) => url)
await browser.close();
})();
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const puppeteer = require('puppeteer');
const fetch = require('node-fetch');
const URL = 'https://www.stefanjudis.com/useful-talk-quotes/';
(async() => {
const browser = await puppeteer.launch();
const page = await browser.newPage();
await page.goto(URL, {waitUntil: 'networkidle0'});
// evaluate URLs
let urls = await page.evaluate(_ => { /* ... */ });
// map URLs to include status code
urls = await Promise.all(urls.map(href => { /* ... */ }));
// filter invalid URLs
const invalidLinks = urls
.filter(href => href.status !== 200)
.map(({url}) => url)
if (invalidLinks.length) {
console.error(`Found invalid links: \n ${invalidLinks.join('\n')}`);
} else {
console.log('All cool!');
}
await browser.close();
})();
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github.com/GoogleChromeLabs/puppeteer-examples
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github.com/GoogleChromeLabs/puppeteer-examples/blob/master/side-by-side-pageload.js
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Automate everything
and spend your time
with fun stuff.
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"Serverless"
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“
You can take your front-end
skills and do things that typically
only a back-end can do.
Chris Coyier
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There's a service
for that!
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Deploy sites easily
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Netlify
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Function as a
Service
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No servers to
maintain
Automatically
upscaling
No payment
for idle time
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serverlesscalc.com
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exports.sayHello = async (event) => {
return 'Hello from Lambda!';
};
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exports.sayHello = async (event) => {
return 'Hello from Lambda!';
};
Lambda
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Lambda
exports.sayHello = async (event) => {
return 'Hello from Lambda!';
};
API Gateway
GET /.../eu-central-1.amazonaws.com/prod/
POST /.../eu-central-1.amazonaws.com/prod/
PUT /.../eu-central-1.amazonaws.com/prod/
...
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Lambda
API Gateway
GET /.../eu-central-1.amazonaws.com/prod/
POST /.../eu-central-1.amazonaws.com/prod/
PUT /.../eu-central-1.amazonaws.com/prod/
...
exports.sayHello = async (event) => {
return {
statusCode: 200,
body: JSON.stringify({
"msg": "Hello from Lambda!"
})
};
};
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Can be tedious
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Google AWS Microsoft IBM AWS
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Google AWS Microsoft IBM AWS
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service: say-hello
provider:
name: aws
runtime: nodejs8.10
functions:
sayHello:
handler: handler.sayHello
events:
- http:
path: /
method: get
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service: say-hello
provider:
name: aws
runtime: nodejs8.10
functions:
sayHello:
handler: handler.sayHello
events:
- http:
path: /
method: get
handler.js
exports.sayHello = async (event) => {
return {
statusCode: 200,
body: JSON.stringify({
"msg": "Hello from Lambda!"
})
};
};
serverless.yml
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Serverless
weekends
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module.exports.redirect = async ({ pathParameters }, context) => {
};
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module.exports.redirect = async ({ pathParameters }, context) => {
try {
} catch (e) {
console.log(e);
return {
statusCode: 500,
body: e.message
};
}
};
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module.exports.redirect = async ({ pathParameters }, context) => {
try {
const { shortUrl } = pathParameters;
const queryUrl = `https://cdn.contentful.com/spaces/${
process.env.SPACE_ID
}/environments/master/entries?content_type=${
process.env.CONTENT_TYPE
}&fields.shortUrl=${shortUrl}&access_token=${process.env.ACCESS_TOKEN}`;
} catch (e) {
console.log(e);
return {
statusCode: 500,
body: e.message
};
}
};
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const got = require('got');
module.exports.redirect = async ({ pathParameters }, context) => {
try {
const { shortUrl } = pathParameters;
const queryUrl = `https://cdn.contentful.com/spaces/${
process.env.SPACE_ID
}/environments/master/entries?content_type=${
process.env.CONTENT_TYPE
}&fields.shortUrl=${shortUrl}&access_token=${process.env.ACCESS_TOKEN}`;
const response = JSON.parse((await got(queryUrl)).body);
const redirect = response.items[0];
return {
statusCode: 301,
headers: { Location: redirect.fields.targetUrl }
};
} catch (e) {
console.log(e);
return {
statusCode: 500,
body: e.message
};
}
};
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const got = require('got');
module.exports.redirect = async ({ pathParameters }, context) => {
try {
const { shortUrl } = pathParameters;
const queryUrl = `https://cdn.contentful.com/spaces/${
process.env.SPACE_ID
}/environments/master/entries?content_type=${
process.env.CONTENT_TYPE
}&fields.shortUrl=${shortUrl}&access_token=${process.env.ACCESS_TOKEN}`;
const response = JSON.parse((await got(queryUrl)).body);
const redirect = response.items[0];
return {
statusCode: 301,
headers: { Location: redirect.fields.targetUrl }
};
} catch (e) {
console.log(e);
return {
statusCode: 500,
body: e.message
};
}
};
www.my-links.online/
devday
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const got = require('got');
module.exports.redirect = async ({ pathParameters }, context) => {
try {
const { shortUrl } = pathParameters;
const queryUrl = `https://cdn.contentful.com/spaces/${
process.env.SPACE_ID
}/environments/master/entries?content_type=${
process.env.CONTENT_TYPE
}&fields.shortUrl=${shortUrl}&access_token=${process.env.ACCESS_TOKEN}`;
const response = JSON.parse((await got(queryUrl)).body);
const redirect = response.items[0];
return {
statusCode: 301,
headers: { Location: redirect.fields.targetUrl }
};
} catch (e) {
console.log(e);
return {
statusCode: 500,
body: e.message
};
}
};
www.my-links.online/
devday
(yes, I bought this domain)
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twitter.com/randomMDN
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twitter.com/randomMDN
You can schedule
functions!!!
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Don't be afraid
your admins won't give
you enough access to
be dangerous.
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Functions are everywhere!
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Connect all the dots
(the power of web hooks)
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“
Web hooks are
the API of the web.
Phil Hawksworth
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? ?
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? ?
module.exports.handleDiscourse = (event, context, callback) => {
};
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? ?
module.exports.handleDiscourse = (event, context, callback) => {
const post = JSON.parse(event.body).post;
};
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? ?
module.exports.handleDiscourse = (event, context, callback) => {
const post = JSON.parse(event.body).post;
if (post && event.headers['X-Discourse-Event'] !== 'post_edited') {
const {
name, topic_title, topic_slug, topic_id, post_number
} = post;
}
};
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? ?
module.exports.handleDiscourse = (event, context, callback) => {
const post = JSON.parse(event.body).post;
if (post && event.headers['X-Discourse-Event'] !== 'post_edited') {
const {
name, topic_title, topic_slug, topic_id, post_number
} = post;
// send it to Slack
// ...
// ...
}
};
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https://www.contentful.com/slack/
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? ?
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? ?
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"Just write a
Lambda function"
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8-bit-revolution.netlify.com/
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require('dotenv').config();
const {
TWILIO_ACCOUNT_SID,
TWILIO_AUTH_TOKEN,
CONTACT_NUMBERS,
BOT_NUMBER,
BOT_MESSAGE
} = process.env;
const client = require('twilio')(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN);
exports.handler = function(event, context, callback) {
Promise.all(
CONTACT_NUMBERS.split(';').map(num => {
return client.messages.create({
from: BOT_NUMBER,
to: num,
body: BOT_MESSAGE
});
})
)
.then(() => callback(null, { statusCode: 200, body: 'Created' }))
.catch(e => callback(e));
};
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youtu.be/vXJpOHz3_sY
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Spend your time
building your business
and
connect all the dots.
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Have fun!
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thepowerofserverless.info
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codepen.io/chriscoyier/project/editor/ZepgLg
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codesandbox.io
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That is VSCode
running in your
browser!
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New
awareness
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webhint.io
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Let's build
good products!
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My wish
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class AppDrawer extends HTMLElement {...}
window.customElements.define('app-drawer', AppDrawer);
Custom Elements
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Let's bet on
our platform!
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How to stay
up-to-date?
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Newsletters
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www.stefanjudis.com/staying-up-to-date/
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webplatform.news
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GitHub
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github.com/Fyrd/caniuse/
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github.com/mdn/browser-compat-data/
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www.chromestatus.com/features
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Don't worry about
falling behind...
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You can't be always
cutting-edge.
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Use what
works for you!
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THANKS
FOR LISTENING
www.my-links.online/devday
@stefanjudis