过滤字符串数组，包括“类似”字符串。条件 [英] Filter array of strings, including "like" condition

问题描述

如果我的主数组是 [Hello，Bye，Halo] ，我正在搜索lo ，它只会将数组过滤到 [Hello，Halo] 。

If my main array is ["Hello","Bye","Halo"], and I'm searching for "lo", it will filter the array only to ["Hello", "Halo"].

这就是我尝试过的：

 let matchingTerms = filter(catalogNames) {
        $0.rangeOfString(self.txtField.text!, options: .CaseInsensitiveSearch) !=  nil
    }

抛出

Type of expression is ambiguous without more context

有任何建议吗？

推荐答案

使用包含而不是：

let arr = ["Hello","Bye","Halo"]
let filtered = arr.filter { $0.contains("lo") }
print(filtered)

输出

[Hello，Halo]

["Hello", "Halo"]

感谢@ user3441734指出该功能当然只有avai当您导入基础

Thanks to @user3441734 for pointing out that functionality is of course only available when you import Foundation

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