- Documentation: https://web.dev/articles/eventsource-basics
- Use case: broadcasting data from server to browsers
- Benefits:
- Easy to understand and implement (only a few lines of code)
- No library is needed
- Can use same HTTP(S) authentication as elsewhere in the app (which can’t be done with websockets)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* Using a JavaScript proxy for a super low code REST client */ | |
// via https://dev.to/dipsaus9/javascript-lets-create-aproxy-19hg | |
// also see https://towardsdatascience.com/why-to-use-javascript-proxy-5cdc69d943e3 | |
// also see https://github.com/fastify/manifetch | |
// also see https://github.com/flash-oss/allserver | |
// and https://gist.github.com/v1vendi/75d5e5dad7a2d1ef3fcb48234e4528cb | |
const createApi = (url) => { | |
return new Proxy({}, { | |
get(target, key) { |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// Implementation in ES6 | |
function pagination(c, m) { | |
var current = c, | |
last = m, | |
delta = 2, | |
left = current - delta, | |
right = current + delta + 1, | |
range = [], | |
rangeWithDots = [], | |
l; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
// ---------------------------------------------------------- | |
// A short snippet for detecting versions of IE in JavaScript | |
// without resorting to user-agent sniffing | |
// ---------------------------------------------------------- | |
// If you're not in IE (or IE version is less than 5) then: | |
// ie === undefined | |
// If you're in IE (>=5) then you can determine which version: | |
// ie === 7; // IE7 | |
// Thus, to detect IE: | |
// if (ie) {} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Angular CLI version | Angular version | Node.js version | TypeScript version | RxJS version | |
---|---|---|---|---|---|
~16.0.0 | ~16.0.0 | ^16.13.0 || ^18.10.0 | >=4.9.5 <5.1.0 | ^6.5.5 || ^7.4.0 | |
~15.2.0 | ~15.2.0 | ^14.20.0 || ^16.13.0 || ^18.10.0 | >=4.8.4 <5.0.0 | ^6.5.5 || ^7.4.0 | |
~15.1.0 | ~15.1.0 | ^14.20.0 || ^16.13.0 || ^18.10.0 | >=4.8.4 <5.0.0 | ^6.5.5 || ^7.4.0 | |
~15.0.5 | ~15.0.4 | ^14.20.0 || ^16.13.0 || ^18.10.0 | ~4.8.4 | ^6.5.5 || ^7.4.0 | |
~14.3.0 | ~14.3.0 | ^14.15.0 || ^16.10.0 | >=4.6.4 <4.9.0 | ^6.5.5 || ^7.4.0 | |
~14.2.0 | ~14.2.0 | ^14.15.0 || ^16.10.0 | >=4.6.4 <4.9.0 | ^6.5.5 || ^7.4.0 | |
~14.1.3 | ~14.1.3 | ^14.15.0 || ^16.10.0 | >=4.6.4 <4.8.0 | ^6.5.5 || ^7.4.0 | |
~14.0.7 | ~14.0.7 | ^14.15.0 || ^16.10.0 | >=4.6.4 <4.8.0 | ^6.5.5 || ^7.4.0 | |
~13.3.0 | ~13.3.0 | ^12.20.2 || ^14.15.0 || ^16.10.0 | >=4.4.4 <4.7.0 | ^6.5.5 || ^7.4.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
sudo find /private/var/folders/ -name com.apple.dock.iconcache -exec rm {} \; |
Memoization is a somewhat fraught topic in the React world, meaning that it's easy to go wrong with it, for example, by [making memo()
do nothing][memo-pitfall] by passing in children to a component. The general advice is to avoid memoization until the profiler tells you to optimize, but not all use cases are general, and even in the general use case you can find tricky nuances.
Discussing this topic requires some groundwork about the technical terms, and I'm placing these in once place so that it's easy to skim and skip over:
- Memoization means caching the output based on the input; in the case of functions, it means caching the return value based on the arguments.
- Values and references are unfortunately overloaded terms that can refer to the low-level implementation details of assignments in a language like C++, for example, or to memory
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
import React from 'react'; | |
const MIN_SCALE = 1; | |
const MAX_SCALE = 4; | |
const SETTLE_RANGE = 0.001; | |
const ADDITIONAL_LIMIT = 0.2; | |
const DOUBLE_TAP_THRESHOLD = 300; | |
const ANIMATION_SPEED = 0.04; | |
const RESET_ANIMATION_SPEED = 0.08; | |
const INITIAL_X = 0; |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
# Sample Nginx config with sane caching settings for modern web development | |
# | |
# Motivation: | |
# Modern web development often happens with developer tools open, e. g. the Chrome Dev Tools. | |
# These tools automatically deactivate all sorts of caching for you, so you always have a fresh | |
# and juicy version of your assets available. | |
# At some point, however, you want to show your work to testers, your boss or your client. | |
# After you implemented and deployed their feedback, they reload the testing page – and report | |
# the exact same issues as before! What happened? Of course, they did not have developer tools | |
# open, and of course, they did not empty their caches before navigating to your site. |
- Do you have an Github account ? If not create one.
- Install required tools
- Latest Git Client
- gpg tools
# Ubuntu
sudo apt-get install gpa seahorse
# MacOS with https://brew.sh/