CamelCase Method

Description:

Write a simple camelCase function for strings. All words must have their first letter capitalized and all spaces removed.

For instance:

camelCase("hello case");// ==> "HelloCase"camelCase("camel case word");// ==> "CamelCaseWord"

TryCode:

func camelCase (_ str: String) -> String{
    
    var newStr = ""
    var isAfterSapce = true
    for chacter in str{
      if chacter.isWhitespace{
                isAfterSapce = true
             continue
      }else{
            if isAfterSapce {
                newStr.append("\\(chacter.uppercased())")
                isAfterSapce = false
            }else{
                newStr.append("\\(chacter)")
      }
    }
}
    return newStr
}

BetterCode:

func camelCase(_ str: String) -> String {
  return str.capitalized.replacingOccurrences(of: " ", with: "")
}

Note:

.capitalized

var capitalized: [String](<https://developer.apple.com/documentation/swift/string>) { get }

自動把每段文字的首字便大寫

replacingOccurrences(of:with:)

func replacingOccurrences(of target: [String](<https://developer.apple.com/documentation/swift/string>), with replacement: [String](<https://developer.apple.com/documentation/swift/string>)) -> [String](<https://developer.apple.com/documentation/swift/string>)

替換文字