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| //
| // RandomAccessCollectionExtensions.swift
| // SwifterSwift
| //
| // Created by Luciano Almeida on 7/13/18.
| // Copyright © 2018 SwifterSwift
| //
|
| public extension RandomAccessCollection where Element: Equatable {
|
| /// SwifterSwift: All indices of specified item.
| ///
| /// [1, 2, 2, 3, 4, 2, 5].indices(of 2) -> [1, 2, 5]
| /// [1.2, 2.3, 4.5, 3.4, 4.5].indices(of 2.3) -> [1]
| /// ["h", "e", "l", "l", "o"].indices(of "l") -> [2, 3]
| ///
| /// - Parameter item: item to check.
| /// - Returns: an array with all indices of the given item.
| func indices(of item: Element) -> [Index] {
| var indices: [Index] = []
| var idx = startIndex
| while idx < endIndex {
| if self[idx] == item {
| indices.append(idx)
| }
| formIndex(after: &idx)
| }
| return indices
| }
|
| }
|
|
