Mreyna3’s gists

Mreyna3 / DelimitedReductionClosure.swift

Last active December 22, 2019 10:38

This gist iterates over a collection in a functional fashion using the reduce method to create character delimited String.

	struct Person {
	let firstName: String
	let lastName: String
	}

	let persons = [Person(firstName: "Eric", lastName: "Franz"),
	Person(firstName: "Dwayne", lastName: "Carter"),
	Person(firstName: "John", lastName: "Lucas")]

	persons.reduce("") { $0 == "" ? $1.name : $0 + "," + $1.name }

Mreyna3 / contents.swift

Created June 6, 2019 05:36

show lines t remove

	let sum = processor.batchSum
	print(newsum)

Mreyna3 / contents.swift

Created June 6, 2019 05:06

updated processBatch function

	func processBatch(){

	for _ in 0..<queue.getCount(){
	batchSum -= queue.peek()!
	//1
	print("deueuing \(queue.dequeue()!.format())")

	}
	//2
	print("deueuing \(batchSum!.format())")

Mreyna3 / contents.swift

Last active June 6, 2019 05:41

computed property

	fileprivate var batchSum : Double!{
	willSet{
	if (newValue > 0 && newValue > batchSum){
	print("\((newValue - batchSum).format()) enqueud into the batch, the updated batch value is: \(newValue!.format())")
	}
	defaults.set(newValue, forKey: "batch_sum")
	}
	}

Mreyna3 / contents.swift

Last active June 6, 2019 05:02

format extension

	public extension Double {
	func format() -> String{
	let formatter = NumberFormatter()
	formatter.numberStyle = .currency
	let formattedDouble = formatter.string(from: self as NSNumber)
	return formattedDouble!
	}
	}

Mreyna3 / contents.swift

Last active June 7, 2019 11:28

Test Data

	var transactionsDataSource1 = [0.32,0.10,0.01,0.02]

	var processor = PaymentProcessor()
	for i in 0..<transactionsDataSource1.count {
	processor.enqueue(transaction: transactionsDataSource1[i])
	}

	let sum = processor.batchSum
	print(sum)

Mreyna3 / contents.swift

Created May 26, 2019 21:40

resetBatchSum function

	func resetBatchSum(){
	//1
	batchSum = 0.0
	//2
	defaults.set(batchSum, forKey: "batch_sum")
	}

Mreyna3 / contents.swift

Created May 26, 2019 21:22

processBatch

	func processBatch(){
	// 1
	for _ in 0..<queue.getCount(){
	// 2
	batchSum -= queue.peek()!
	print("deueuing \(queue.dequeue()!)")

	}
	print("deueuing \(batchSum!)")
	// 3

Mreyna3 / contents.swift

Last active May 26, 2019 20:49

addToBatch

	private func addToBatch(transaction: Double) {
	// 1
	queue.enqueue(element: transaction)
	//2
	batchSum += transaction

	if(shouldProcessBatch()){
	// 3
	processBatch()
	}else{

Mreyna3 / contents.swift

Created May 26, 2019 20:28

enqueue function

	public func enqueue(transaction: Double){
	if(shouldProcessBatch()){
	//1
	processBatch()
	addToBatch(transaction: transaction)
	}else{
	//2
	addToBatch(transaction: transaction)
	}
	}