WonJo trilliwon

$ git branch | fzf
$ git switch $(git branch | fzf)
$ git checkout $(git for-each-ref refs/heads/ --format='%(refname:short)' | fzf)

Or add below script to .zshrc

npm install -g ts-node
npm install -g typescript
ts-node ***.ts

tsc main.ts && node main.js

npx ts-node-dev --respawn main.ts

I had an error start postgre local server like `PostgreSQL stale ‘postmaster.pid’ error`

To fix this error should just remove postmaster.pid file. This issue happens when the PostgreSQL process dies without cleaning up its pid file.

Delete `postmaster.pid`

cd Library/Application\ Support/Postgres/var-13/
rm postmaster.pid

Standard ML Topics

Pairs, Lists, Local Bindings, Benefit of No Mutation

Records, Datatypes, Case Expressions and more

A variable binding

인공지능 개론 - Topics

Online Resource

Topics

First class functions

함수가 expression 으로 사용될 있으면 일급함수이다. 오브젝트로서 사용될 수 있으면 일급함수. 함수를 값으로써 변수에 대입하거나 함수의 리턴값으로 사용되면 일급함수다.

Higher-Order Functions (고차함수)

What is Computer Vision?

Acquiring, processing, analyzing, and understanding visual data in order to produce numerical or symbolic information.[wikipedia]

Human Eyes

Generic term is Test Double. 테스트에서 사용할 때 production object를 대신하는 용어다.

Dummy

objects are passed around but never actually used. Usually they are just used to fill parameter lists. 실제로 사용되지 않으며 파라미터로 넘겨질 수 있는 오브젝트, 단지 파라미터 리스트를 채우기 위해 사용함.

	# SwiftUI Best Practices for iOS App Development

	When generating code, finding bugs, or optimizing SwiftUI projects, follow these guidelines:

	Never modify files without my consent.
	Only work on the exact feature I request.
	Don't duplicate files or functionalities.

	## General Guidelines

	export class JWTGenerator {
	private keyId: string;
	private issuerId: string;
	private privateKey: string;

	constructor(keyId: string, issuerId: string, privateKey: string) {
	this.keyId = keyId;
	this.issuerId = issuerId;
	// Normalize private key format
	this.privateKey = privateKey.replace(/\\n/g, '\n');