christopherkarani

Contributing

When contributing to this repository, please first discuss the change you wish to make via issue, email, or any other method with the owners of this repository before making a change.

Please note we have a code of conduct, please follow it in all your interactions with the project.

Pull Request Process

1. Ensure any install or build dependencies are removed before the end of the layer when doing a

christopherkarani

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

christopherkarani

func isValidEmail(testStr:String) -> Bool {        
    let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"

    let emailTest = NSPredicate(format:"SELF MATCHES %@", emailRegEx)
    return emailTest.evaluate(with: testStr)
}

christopherkarani

var numbers = [Int]()

for x in 1...100 {
    numbers.append(x)
}

var num = [1,2,4,6,8,9,11,13,16,17,20]

func binarySearch(for searchValue: Int, withDatasoucre datasource: [Int]) -> Bool {
    var firstIndex = 0

christopherkarani

extension ChatController {
    func setupKeyboardObservers() {
        NotificationCenter.default.addObserver(self, selector: #selector(handleKeyboardWillShow(withNotification:)), name: .UIKeyboardWillShow, object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(handleKeyboardWillHide(withNotification:)), name: .UIKeyboardDidHide, object: nil)
    }
    @objc func handleKeyboardWillShow(withNotification notification: Notification) {
        let keyboardFrame = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as AnyObject).cgRectValue
        let keyboardDuration = (notification.userInfo?[UIKeyboardAnimationDurationUserInfoKey] as AnyObject).doubleValue
        containerViewBottomAnchor?.constant = -(keyboardFrame?.height)! // bottomAnchor + constant
        UIView.animate(withDuration: keyboardDuration!) {

christopherkarani

    func estimatedFrame(forText text: String) -> CGRect {
        // width is same as cell.texView width
        //height is an arbitrary larg value
        let size = CGSize(width: 200, height: 1000)
        let options = NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin)
        let attributes = [NSAttributedStringKey.font: UIFont.systemFont(ofSize: 16)]
        return  NSString(string: text).boundingRect(with: size, options: options, attributes: attributes, context: nil)
    }

christopherkarani

extension Date {

    func timeAgoSinceDate(date:NSDate, numericDates:Bool) -> String {
        let calendar = NSCalendar.current
        let unitFlags: Set<Calendar.Component> = [.minute, .hour, .day, .weekOfYear, .month, .year, .second]
        let now = NSDate()
        let earliest = now.earlierDate(date as Date)
        let latest = (earliest == now as Date) ? date : now
        let components = calendar.dateComponents(unitFlags, from: earliest as Date,  to: latest as Date)
        

christopherkarani

struct ConformsWithoutOptional {
    let required: String
}

struct ConformsWithOptional {
    let required: String
    let optional: String?
}

christopherkarani

extension SomeProtocol {
    var optional: String? { return nil }
}

christopherkarani

protocol SomeProtocol {
    var required: String { get }
    var optional: String? { get }
}