Network Security Internet Technology Development Database Servers Mobile Phone Android Software Apple Software Computer Software News IT Information

In addition to Weibo, there is also WeChat

Please pay attention

WeChat public account

Shulou

How to use swift functional programming

2025-04-05 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

Share

Shulou(Shulou.com)06/03 Report--

This article focuses on "how to use swift functional programming", interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to use swift functional programming.

Example / Statistical word frequency let non_words: Set = ["the", "and", "of", "to", "a", "I", "it", "in", "or", "is", "as", "so", "but", "be" "don't"] / / conventional func wordFreq (words: String)-> [Dictionary] {var wordDict: [String: Int] = [:] let wordList = words.split (separator: ") for word in wordList {let lowerCaseWord = word.lowercased () if! non_words.contains (lowerCaseWord) {if let count = wordDict [lowerCaseWord] {wordDict [ LowerCaseWord] = count + 1} else {wordDict [lowerCaseWord] = 1}} var sortedResult = [Dictionary] () for item in wordDict.sorted {$0.1 > $1.1} {sortedResult.append ([item.key: item.value])} return sortedResult} let words = "" The powerful programming language that is also easy to learn Swift is a powerful and Intuitive programming language for macOS iOS watchOS tvOS and beyond Writing Swift code is interactive and fun the syntax is concise yet expressive and Swift includes modern features developers love Swift code is safe by design yet also produces software that runs lightning-fast Swift is the result of the latest research on programming languages combined with decades of experience building Apple platforms Named parameters are expressed in a clean syntax that makes APIs "" let ret = wordFreq (words: words) print (ret) / / ["swift": 5] ["programming": 3], ["that": 3], ["syntax": 2], ["code": 2], ["yet": 2], ["powerful": 2], ["also": 2], ["language": 2], ["beyond": 1], ["clean": 1], ["result": 1], ["features": 1], ["on": 1], ["produces": 1] ["concise": 1], ["latest": 1], ["developers": 1], ["for": 1], ["design": 1], ["experience": 1], ["with": 1], [parameters ": 1], [" building ": 1], [" macos ": 1], [" combined ": 1], [" languages ": 1], [" lightning-fast ": 1], [" tvos ": 1] ["interactive": 1], ["safe": 1], ["fun": 1], ["apis": 1], ["easy": 1], ["decades": 1], ["makes": 1], [by ": 1], [" includes ": 1], [" expressed ": 1], [" love ": 1], [" are ": 1], [" intuitive ": 1], [" named ": 1] ["research": 1], ["writing": 1], ["watchos": 1], ["expressive": 1], ["apple": 1], ["platforms": 1], ["learn": 1], ["ios": 1], ["software": 1], ["modern": 1] ["runs": 1]] / / functional programming func wordFreqTwo (words: String)-> [Dictionary] {var wordDict: [String: Int] = [:] words.split (separator: ") .map {$0.lowercased ()} .filter {! non_words.contains ($0)} .forEach {(word) in wordDict [word] = (wordDict [word) ]? 0) + 1} var sortedResult = [Dictionary] () wordDict.sorted {(word) in sortedResult.append ([word.key: word.value])} return sortedResult} let retTwo = wordFreqTwo (words: words) print (retTwo) / / ["swift": 5] ["programming": 3], ["that": 3], ["syntax": 2], ["also": 2], ["language": 2], ["powerful": 2], ["yet": 2], ["code": 2], ["love": 1], ["safe": 1], ["watchos": 1], ["ios": 1], ["combined": 1], ["tvos": 1] ["runs": 1], ["are": 1], ["experience": 1], ["design": 1], ["by": 1], ["expressed": 1], ["features": 1], [result ": 1], [" parameters ": 1], [" expressive ": 1], [" building ": 1], [" fun ": 1], [" software ": 1], [" on ": 1] ["research": 1], ["writing": 1], ["produces": 1], ["with": 1], ["clean": 1], ["platforms": 1], ["named": 1], [concise ": 1], [" latest ": 1], [" makes ": 1], [" interactive ": 1], [" languages ": 1], [" easy ": 1], [" for ": 1] ["lightning-fast": 1], ["beyond": 1], ["decades": 1], ["apis": 1], ["learn": 1], ["includes": 1], ["modern": 1], ["macos": 1], ["intuitive": 1], ["developers": 1]] so far I believe you have a deeper understanding of "how to use swift functional programming". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.

Views: 0

*The comments in the above article only represent the author's personal views and do not represent the views and positions of this website. If you have more insights, please feel free to contribute and share.

Share To

Development

Wechat

© 2024 shulou.com SLNews company. All rights reserved.

12
Report