fileprivatestaticfunc_convertFromSnakeCase(_ stringKey:String)->String{guard!stringKey.isEmptyelse{returnstringKey}// Find the first non-underscore characterguardletfirstNonUnderscore=stringKey.index(where:{$0!="_"})else{// Reached the end without finding an _returnstringKey}// Find the last non...
1finalclassSolution {2func findReplaceString(_ S: String, _ indexes: [Int], _ sources: [String], _ targets: [String]) ->String {3vardict: [Int: (String, String)] =Dictionary(uniqueKeysWithValues: zip(indexes, zip(sources, targets)) )4varindexes = indexes.sorted(by: >)5varS =Array...
String Interpolation We can also use the backslash character\to use variables and constants inside a string. For example, letname ="Swift"varmessage ="This is \(name) programming."print(message) Output This is Swift programming. In the above example, notice the line ...
let string6 = """ Safari is packed with innovative features that give you more ways to enjoy the web. Built-in privacy features help protect your personal information and keep your Mac safe. Optimized start page that allows you to easily and quickly save, find, and share your favorite site...
1classSolution {2func findAnagrams(_ s: String, _ p: String) ->[Int] {3guard s.count >0, s.count >= p.countelse{4return[]5}6let sarr:[Character] =Array(s)7let parr:[Character] =Array(p)8varcount =parr.count9varresult = Array<Int>()10varmap = Dictionary<Character, Int>(...
var tempStr: String = "" for i in start...end { let temp: String = self[self.index(self.startIndex, offsetBy: i - 1)].description tempStr += temp } return tempStr } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.
in Swift 3. Also, if your code is explicitly usingAnyObjector Cocoa classes such asNSString,NSArray, orNSDictionary, you will need to introduce more explicit casts usingas NSStringoras String, since the implicit conversions between the objects and value types are no longer allowed in Swift 3...
In these cases, the explicit type syntax is still permitted: extension String { static let earth = "Earth" } // WRONG: fails with "error: type 'String?' has no member 'earth'" let planetName = String?.earth // RIGHT let planetName: String? = .earth struct SaturnOutline: ShapeStyle...
Fast and accurate character segmentation algorithm Add support for lowercase characters Add support for connected character segmentation This is a really good question. If you want to recognize normal text like a poem or a news article, go with Tesseract, but if you want to recognize short, alpha...
原因:Swift认为字符串是由一个个字形群集 (grapheme clusters)组成的,字形群集的大小不固定所以不能用整数去索引 (字形群集其实就是Swift中的Character(字符)类)。 解决方案:如要通过下标取字符可以为String添加扩展在下标subscript实现通过传入Int索引,在subscript转为String.index获取对应字符的方式。 2.2 try try? tr...