如何直接将数组中的所有字符串大写？ [英] How can I capitalize all the strings inside an array directly?

问题描述

我快速学习。我一直在Playground尝试这个。我不知道为什么字符串没有在这里大写。或者有没有其他方法可以直接大写数组中的字符串？

这是我的代码。

  var dogNames = [Sean，fido，Sarah，Parker，Walt，abby，Yang] 
 
 for index in 0 ..< dogNames.count {
 var dogName = dogNames [index] .capitalizedString 
 dogNames.removeAtIndex（index）
 dogNames.append（dogName）
} 
  

当我尝试再次显示变量dogNames时。里面的字符串没有大写。

解决方案

也回答我自己的问题。总结我在答案中找到的所有内容。我想出了这个解决方案。这就是我用较少的过程来解决这个问题。

  var dogNames = [Sean，fido，Sarah ，Parker，Walt，abby，Yang] 
 
 
指数为0 ..< dogNames.count {
 
 if dogNames [index]！= dogNames [index] .capitalizedString {
 var dogName = dogNames [index] .capitalizedString 
 dogNames [index] = dogName 
} 
 
 } 
  

I'm learning swift. I've been trying this in Playground. I have no idea why the string is not being capitalized here. Or is there any other way to capitalize the string inside the array directly?

Here's my code.

var dogNames = ["Sean", "fido", "Sarah", "Parker", "Walt", "abby", "Yang"]

for index in 0..<dogNames.count {
    var dogName = dogNames[index].capitalizedString
    dogNames.removeAtIndex(index)
    dogNames.append(dogName)
}

When I try to display again the variable dogNames. The strings inside are not being capitalized.

解决方案

To answer my own question as well. Summarizing everything I found in the answers here. I came up with this solution. This is what I did to fix this with less process.

var dogNames = ["Sean", "fido", "Sarah", "Parker", "Walt", "abby", "Yang"]


for index in 0..<dogNames.count {

    if dogNames[index] != dogNames[index].capitalizedString {
        var dogName = dogNames[index].capitalizedString
        dogNames[index] = dogName
    }

}

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