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#!/bin/bash

#
# Updates all plug-ins to be compatible with the latest Xcode and Xcode-beta
#

plugins_location="~/Library/Application\ Support/Developer/Shared/Xcode/Plug-ins"

# Get Xcode's version
current_xcode_version="$(defaults read /Applications/Xcode.app/Contents/Info DVTPlugInCompatibilityUUID)"

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Git Cheat Sheet

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Commands

Getting Started

git init

or

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Types

A type is a collection of possible values. An integer can have values 0, 1, 2, 3, etc.; a boolean can have values true and false. We can imagine any type we like: for example, a HighFive type that allows the values "hi" or 5, but nothing else. It's not a string and it's not an integer; it's its own, separate type.

Statically typed languages constrain variables' types: the programming language might know, for example, that x is an Integer. In that case, the programmer isn't allowed to say x = true; that would be an invalid program. The compiler will refuse to compile it, so we can't even run it.

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import UIKit
import PlaygroundSupport

public extension UIColor {
    public func hsba() -> (hue: CGFloat, saturation: CGFloat, brightness: CGFloat, alpha: CGFloat)? {
        var hue: CGFloat = .nan, saturation: CGFloat = .nan, brightness: CGFloat = .nan, alpha: CGFloat = .nan
        guard self.getHue(&hue, saturation: &saturation, brightness: &brightness, alpha: &alpha) else {
            return nil
        }
        return (hue: hue, saturation: saturation, brightness: brightness, alpha: alpha)