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class Foo {
    var name: String?           // instance property
    
    /**
    You define type properties with the static keyword. 
    For computed type properties for class types, 
    you can use the class keyword instead to allow subclasses to override the superclass’s implementation. 
    The example below shows the syntax for stored and computed type properties
    */
    

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// mode: 0 是 直角三角形, 1 是 等腰三角形
// size: 邊長

func printer(mode: Int, size: Int) {
    
  // Print a right angled triangle
  func rightAngledTriangle() {
    var i = 1
    while i <= size {
      var string = ""

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<?php

    $premissionA = 1;		// 1
    $premissionB = 1 << 1;  // 2	
    $premissionC = 1 << 2;  // 4
    $premissionD = 1 << 3;  // 8
    $premissionE = 1 << 4;  // 16
    $premissionF = 1 << 5;  // 32
    $premissionG = 1 << 6;  // 64
    $premissionH = 1 << 7;  // 128

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ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

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//: A UIKit based Playground for presenting user interface
  
import UIKit
import PlaygroundSupport

// ******************************************
//
// MARK: - Config injection
//
// ******************************************

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//: A UIKit based Playground for presenting user interface
  
import UIKit
import PlaygroundSupport

/// CLSTableViewConfig for extend, add more tableview properties.
struct CLSTableViewConfig {
    var heightForRow: CGFloat?
}

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protocol CLSPickerViewProtocol {
    var title: String { get }
    var id: Int { get }
}

final class CLSPickerView<T: LLPickerViewProtocol>: UIPickerView, UIPickerViewDelegate, UIPickerViewDataSource {
   
    var selectHandler: ((T) -> Void)?
    
    var contents: [T] = [] {

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# 進入 mysql container，（我的 container 叫 mysql 也許你的不一樣）
docker-compose exec mysql bash
# Login into mysql
mysql -u root -p 
# Change encryption of the current user's password
ALTER USER 'yourusername'@'localhost' IDENTIFIED WITH mysql_native_password BY 'youpassword';

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# Remove old one 
brew cask uninstall sequel-pro

# Install new
brew cask install homebrew/cask-versions/sequel-pro-nightly

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# Backup
docker exec CONTAINER /usr/bin/mysqldump -u root --password=root DATABASE > backup.sql

# Restore
cat backup.sql | docker exec -i CONTAINER /usr/bin/mysql -u root --password=root DATABASE