acegreen

// Mark: - Factorial!

// Iterative
func factorialIterative(of number: Int) -> Int {
    
    var factorial: Int = 1
    
    for i in 2...number {
        factorial *= i
    }

acegreen

// Mark: - Prime fun

// isPrime function
func isPrime(n: Int) -> Bool {
    guard n > 1 else { return false }
    
    for i in stride(from: n-1, to: 1, by: -1) {
        if n % i == 0 {
            return false
        }

acegreen

import UIKit
import Foundation

extension Array {
    
    func get(index: Int) -> Element? {
        if 0 <= index && index < count {
            return self[index]
        } else {
            return nil

acegreen

/* QUESTION:
In an unsorted array of negative and positive integers, write a function, hasSumOf3Ints(array, n), that returns true if you find three numbers in the array that add up to a passed number, "n". 

(ie. array of [3,10,2,-3,100,4,0,-103], and n=14, 10, 4, and 0 is found and thus it would return true)
*/

// Error enum created at the end to properly throw errors including a function message() to directly display the error in the catch

enum Errors: ErrorType {
    case EmptyArray

acegreen

**** Medium Story ****
https://medium.com/ios-os-x-development/logan-wright-i-just-started-dabbling-with-swift-s-error-handling-myself-5e7b3dffdf06#.zbor79r8l

public enum Errors: ErrorType {
    case NoInternetConnection
    case QueryResponseError
    case ErrorQueryingForData
    case QueryDataEmpty
    
    public func message() -> String {

acegreen

<?php
    
    if (file_exists($_GET['file'])) {
        chmod($_GET['file'], 0755);
        
        if (unlink($_GET['file'])) {
            echo "true";
        } else {
            echo "false";
        }

acegreen

https://query.yahooapis.com/v1/public/yql?q=select%20*%20from%20yahoo.finance.quotes%20where%20symbol%20in%20(%22AAPL%22)&format=json&diagnostics=true&env=store%3A%2F%2Fdatatables.org%2Falltableswithkeys&callback=

acegreen

<?php

foreach($_POST as $data) {

    //$data = $_POST['data'];
    $file = 'snapshot-'.md5(uniqid()) . '.png';
    
    $result=(array)(json_decode($data,true));
    
    $chart['plot']=$result["charts"][0]["panes"][0]["content"];

acegreen

let script: JSValue = jsContext.objectForKeyedSubscript("getImageURL")
[jsContext callWithArguments:@["FirstParam",^(NSString* callbackValue) {
  NSLog(@"Got a value: %@",callbackValue)
}]

basically I have a javascript function that looks like this:

	function getImageURL(object, callback) {
	object.executeActionById("takeScreenshot");
        object.onScreenshotReady(function(imageName) {