搜索多个单词，忽略Swift中的顺序 [英] Search for multiple words ignoring the order in Swift

问题描述

我目前有一个 UITextField ，可以在其中输入搜索字符串，它将按特定顺序返回包含该文本的数组中的任何字符串.但是，我想使搜索每个单词并忽略数组中字符串的顺序成为可能.

I currently have a UITextField where I can enter a search string and it will return any of the strings in an array that contain that text, in that specific order. However, I want to make it possible to search on every word and ignore the order of the strings in the array.

var results = [String]()
let filterArray = ["Big green bubble", "Red bubble", "A bubble in green", "Small green bubble", "This bubble is green"]     
let textString = "green bubble" 
for i in 0 ..< filterArray.count { 
    let checkString = filterArray[i] 
    let filterRange = (checkString as NSString).range(of: textString, options: .caseInsensitive) 
    if filterRange.location != NSNotFound { 
        results.append(checkString) 
    }
}  
print(results) // returns ["Big green bubble", "Small green bubble"]

我希望它也包含绿色气泡" 和这个气泡绿色" ，因为它包含了我要搜索的每个单词.有什么想法吗?

I wish it would also include "A bubble in green" and "This bubble is green", because it contains every word I am searching for. Any ideas?

推荐答案

只需过滤来自 filterArray 的元素，其中包含这两个词

Just filter elements from filterArray which contains both of these words

let filterArray = ["Big green bubble", "Red bubble", "A bubble in green", "Small green bubble", "This bubble is green"]
let textString = "green bubble".lowercased()
let words = textString.components(separatedBy: " ")
let results = filterArray.map { $0.lowercased() }.filter { string in words.allSatisfy { string.components(separatedBy: " ").contains($0) } }

print(results) /* ["Big green bubble", "A bubble in green", "Small green bubble", "This bubble is green"] */

这篇关于搜索多个单词，忽略Swift中的顺序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！