akhilcb

extension Array where Element: Comparable {
    
    //insert item to sorted array
    mutating func insertSorted(newItem item: Element) {
        let index = insertionIndexOf(elem: item) { $0 < $1 }
        insert(item, at: index)
    }
}

extension Array {

akhilcb

func squareroot(number: Double) -> Double {
    if number <= 0 {
        return 0
    }
    
    var x = number / 3
    var y = number / x
    let maxDiff: Double = 0.0001
    
    while abs(y - x) > maxDiff {

akhilcb

// Taken from ACBRadialMenuView Project
// BSD 3-Clause License
// Copyright (c) 2017, akhilcb (https://github.com/akhilcb)

extension CGPoint {
    
    static func pointOnCircle(center: CGPoint, radius: CGFloat, angle: CGFloat) -> CGPoint {
        let x = center.x + radius * cos(angle)
        let y = center.y + radius * sin(angle)
        

akhilcb

public extension Sequence {
    
    public func mapUnique<T: Equatable>(_ transform: (Iterator.Element) -> T) -> [T] {
        var result: [T] = []
        //takes O(n^2) time since T is not Hashable type
        for element in self {
            let transformedElement: T = transform(element)
            if result.contains(transformedElement) {
                continue
            }