bonoogi

자꾸 까먹어서 만드는 VSCODE 사용법 모음

• 명령 팔레트: cmd+shift+p / ctrl+shift+p
• 현재 파일을 새 창으로 띄우기: cmd + k 후 손가락 떼고 o
• 자동 라인브레이크 토글: option + z

bonoogi

class Singleton private constructor() {
  companion object {
    // Volatile: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.jvm/-volatile/index.html
    @Volatile private var instance: Singleton? = null
    
    // JvmStatic: https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.jvm/-jvm-static/index.html
    @JvmStatic fun getInstance(): Singleton = 
      instance ?: synchronized(this) {
        instance ?: Singleton().also {
          instance = it

bonoogi

^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$

bonoogi

/*
 * Copyright (C) 2016 Jeff Gilfelt.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software

bonoogi

class Solution {
    func arrangeCoins(_ n: Int) -> Int {
        let sq = Int(sqrt(Double(n * 2)))
        let diff = sq * (sq + 1) / 2
        if n >= diff {
            return sq
        } else {
            return sq - 1
        }
    }

bonoogi

// https://leetcode.com/problems/set-matrix-zeroes/
class Solution {
    func setZeroes(_ matrix: inout [[Int]]) {
        if matrix.isEmpty {
            return
        }
        var points = [(Int, Int)]()
        let rows = matrix.count
        let columns = matrix[0].count

bonoogi

// Swift 4
// Check out the history for contributions and acknowledgements.

extension String {
  /// Returns a new string made by replacing all HTML character entity references with the corresponding character.
  /// decode per unicode because ;️(utf-16 `\u003b\ufe0a`) but i need find ;(utf-8 `\u003b`).
  /// - Returns: decoded string
  func decodingHTMLEntities() -> String {
    let scalars = unicodeScalars

bonoogi

#!/bin/bash
if [ -f ~/Library/KeyBindings/DefaultkeyBinding.dict ]; then
	echo "~/Library/KeyBindings/DefaultkeyBinding.dict already exists"
	exit -1
fi

mkdir -p ~/Library/KeyBindings
cat << EOF > ~/Library/KeyBindings/DefaultkeyBinding.dict 
{
    "₩" = ("insertText:", "\`");

bonoogi

func quickSort(_ array: [Int]) -> [Int] {
    guard array.count > 1 else { return array }
  
    let pivot = array.first!
    var left = [Int]()
    var right = [Int]()
  
    for i in 1..<array.count {
        let value = array[i]
        if value < pivot {

bonoogi

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options: