jeemyeong

The Promise All Problem

in case of processing a very large array e.g. Promise.all(A_VERY_LARGE_ARRAY_OF_XHR_PROMISE)

which would probably blow you browser memory by trying to send all requests at the same time

solution is limit the concurrent of requests, and wrap promise in thunk

Promise.allConcurrent(2)([()=>fetch('BLAH1'), ()=>fetch('BLAH2'),...()=>fetch('BLAHN')])

jeemyeong

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jeemyeong

Avoiding HOC; Favoring render props

The React community is moving away from HOC (higher order components) in favor of render prop components (RPC). For the most part, HOC and render prop components solve the same problem. However, render prop components provide are gaining popularity because they are more declarative and flexible than an HOC.

Read more:

• Use a render prop
• Breaking up with HOC
• HOC vs. render props
• React HOC docs
• React render props docs

jeemyeong

function logColor(color, args) {
    console.log(`%c ${args.join(' ')}`, `color: ${color}`);
}

const log = {
  aliceblue: (...args) => { logColor('aliceblue', args)},
  antiquewhite: (...args) => { logColor('antiquewhite', args)},
  aqua: (...args) => { logColor('aqua', args)},
  aquamarine: (...args) => { logColor('aquamarine', args)},
  azure: (...args) => { logColor('azure', args)},

jeemyeong

Docker 치트 시트

한국어 번역(초벌) : nacyot

왜 Docker를 사용해야하는가?

Why Should I Care (For Developers)

"나에게 Docker의 매력은 간단히 격리된 환경을 만들 수 있다는 것과, 그러한 환경을 재사용할 수 있다는 점이다."런타임 환경을 한 번 만들어 패키지로 만들면, 이 패키지를 다른 어떤 머신에서도 다시 사용할 수 있다. 또한 여기서 실행되는 모든 것은 마치 가상머신과 같이 호스트로부터 격리되어있다. 무엇보다도 이런 모든 일들이 빠르고 간단히 가능하다.

jeemyeong

1-1 스프링부트springboot 이야기

1. 스프링부트springboot란?

Spring Boot makes it easy to create stand-alone, production-grade Spring based Applications that you can "just run". We take an opinionated view of the Spring platform and third-party libraries so you can get started with minimum fuss. Most Spring Boot applications need very little Spring configuration.

• 스프링부트는 단독실행되는, 실행하기만 하면 되는 상용화 가능한 수준의 스프링 기반 애플리케이션을, 쉽게 만들어낼 수 있다.
• 최소한의 설정으로 스프링 플랫폼과 서드파티 라이브러리들을 사용할 수 있도록 하고 있다.

1.1. 스프링부트 기능

jeemyeong

Deploying a subfolder to GitHub Pages

Sometimes you want to have a subdirectory on the master branch be the root directory of a repository’s gh-pages branch. This is useful for things like sites developed with Yeoman, or if you have a Jekyll site contained in the master branch alongside the rest of your code.

For the sake of this example, let’s pretend the subfolder containing your site is named dist.

Step 1

Remove the dist directory from the project’s .gitignore file (it’s ignored by default by Yeoman).