{"id":23962,"date":"2022-11-29T10:53:04","date_gmt":"2022-11-29T05:23:04","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/"},"modified":"2022-11-29T10:53:04","modified_gmt":"2022-11-29T05:23:04","slug":"solved-create-a-comparison-in-an-array","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/","title":{"rendered":"[Solved] Create a comparison in an array"},"content":{"rendered":"

[ad_1]
\n<\/p>\n

\n
\n
<\/div>\n
\n
\n
import Foundation\n\nlet serverOutput = Data(\"\"\"\n[\n    {\n        \"language\": \"French\",\n        \"number\": \"12\"\n    },\n    {\n        \"language\": \"English\",\n        \"number\": \"10\"\n    }\n]\n\"\"\".utf8)\n\nstruct LangueUsers: Codable {\n    let language: String\n    let number: Int\n\n    enum CodingKeys: CodingKey {\n        case language\n        case number\n    }\n\n    init(from decoder: Decoder) throws {\n        let container = try decoder.container(keyedBy: CodingKeys.self)\n        language = try container.decode(String.self, forKey: .language)\n        let rawNumber = try container.decode(String.self, forKey: .number)\n        guard let number = Int(rawNumber) else {\n            throw DecodingError.typeMismatch(Int.self, DecodingError.Context(codingPath: [CodingKeys.number], debugDescription: \"\\(rawNumber) can't be convert to Int\"))\n        }\n        self.number = number\n    }\n}\n\nstruct LangueUsersPercent: CustomStringConvertible {\n    let language: String\n    let share: Double\n\n    init(language: String, number: Int, all: Int) {\n        self.language = language\n        self.share = Double(number) \/ Double(all)\n    }\n\n    var description: String {\n        return String(format: \"%@ - %0.1f%%\", language, share * 100)\n    }\n}\n\nlet decoder = JSONDecoder()\n\/\/1\nvar output = try decoder.decode([LangueUsers].self, from: serverOutput)\n\/\/2\nlet allUser = output.reduce(0) { (reult, languageUsers) -> Int in\n    reult + Int(languageUsers.number)\n}\n\/\/3\noutput.sort { (lhs, rhs) -> Bool in\n    lhs.number > rhs.number\n}\n\/\/4\nlet response = output.map {\n    LangueUsersPercent(language: $0.language, number: $0.number, all: allUser)\n}\nprint(response[0])\n<\/code><\/pre>\n
The code assumes that the output from a server is in serverOutput<\/code> variable. So steps need to achieve your task: <\/p>\n
    \n
  1. decode your JSON to swift structure (called LangueUsers<\/code>) using swift codable. Keep in mind that by default it won’t convert string values to int, so I have to create a custom init(from decoder: Decoder)<\/code> initializer<\/li>\n
  2. count the sum of all users (you can do it using for loop or reduce like in my example)<\/li>\n
  3. sort your list, so the language with the most users will be first<\/li>\n
  4. this step is optional, but I’ve added a separate structure that will help us generate output and in this step, we are rewriting our input structures to output ones<\/li>\n<\/ol>\n
    Hope this is clear for you. Let me know if you have any questions.<\/p>\n<\/p><\/div>\n
    <\/div>\n<\/div>\n
                1<\/span> <\/p><\/div>\n<\/div>\n
    [ad_2]<\/p>\n
    solved Create a comparison in an array <\/p>\n","protected":false},"excerpt":{"rendered":"
    [ad_1] import Foundation let serverOutput = Data(“”” [ { “language”: “French”, “number”: “12” }, { “language”: “English”, “number”: “10” } ] “””.utf8) struct LangueUsers: Codable { let language: String let number: Int enum CodingKeys: CodingKey { case language case number } init(from decoder: Decoder) throws { let container = try decoder.container(keyedBy: CodingKeys.self) language = try … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[361,947,471,522],"class_list":["post-23962","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-comparison","tag-ios","tag-swift"],"yoast_head":"\n[Solved] Create a comparison in an array - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Create a comparison in an array - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] import Foundation let serverOutput = Data(""" [ { "language": "French", "number": "12" }, { "language": "English", "number": "10" } ] """.utf8) struct LangueUsers: Codable { let language: String let number: Int enum CodingKeys: CodingKey { case language case number } init(from decoder: Decoder) throws { let container = try decoder.container(keyedBy: CodingKeys.self) language = try ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-11-29T05:23:04+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Create a comparison in an array\",\"datePublished\":\"2022-11-29T05:23:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\"},\"wordCount\":143,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"arrays\",\"comparison\",\"ios\",\"swift\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\",\"name\":\"[Solved] Create a comparison in an array - JassWeb\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#website\"},\"datePublished\":\"2022-11-29T05:23:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/jassweb.com\/solved\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"[Solved] Create a comparison in an array\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/jassweb.com\/solved\/#website\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"name\":\"JassWeb\",\"description\":\"Build High-quality Websites\",\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/jassweb.com\/solved\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\",\"name\":\"Jass Web\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"contentUrl\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"width\":693,\"height\":132,\"caption\":\"Jass Web\"},\"image\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\",\"name\":\"Kirat\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"contentUrl\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"caption\":\"Kirat\"},\"sameAs\":[\"http:\/\/jassweb.com\"],\"url\":\"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"[Solved] Create a comparison in an array - JassWeb","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/","og_locale":"en_US","og_type":"article","og_title":"[Solved] Create a comparison in an array - JassWeb","og_description":"[ad_1] import Foundation let serverOutput = Data(\"\"\" [ { \"language\": \"French\", \"number\": \"12\" }, { \"language\": \"English\", \"number\": \"10\" } ] \"\"\".utf8) struct LangueUsers: Codable { let language: String let number: Int enum CodingKeys: CodingKey { case language case number } init(from decoder: Decoder) throws { let container = try decoder.container(keyedBy: CodingKeys.self) language = try ... Read more","og_url":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/","og_site_name":"JassWeb","article_published_time":"2022-11-29T05:23:04+00:00","author":"Kirat","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Kirat","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#article","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/"},"author":{"name":"Kirat","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31"},"headline":"[Solved] Create a comparison in an array","datePublished":"2022-11-29T05:23:04+00:00","mainEntityOfPage":{"@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/"},"wordCount":143,"publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"keywords":["arrays","comparison","ios","swift"],"articleSection":["Solved"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/","url":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/","name":"[Solved] Create a comparison in an array - JassWeb","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/#website"},"datePublished":"2022-11-29T05:23:04+00:00","breadcrumb":{"@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/jassweb.com\/solved\/solved-create-a-comparison-in-an-array\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jassweb.com\/solved\/"},{"@type":"ListItem","position":2,"name":"[Solved] Create a comparison in an array"}]},{"@type":"WebSite","@id":"https:\/\/jassweb.com\/solved\/#website","url":"https:\/\/jassweb.com\/solved\/","name":"JassWeb","description":"Build High-quality Websites","publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jassweb.com\/solved\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jassweb.com\/solved\/#organization","name":"Jass Web","url":"https:\/\/jassweb.com\/solved\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/","url":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","contentUrl":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","width":693,"height":132,"caption":"Jass Web"},"image":{"@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31","name":"Kirat","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/","url":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","contentUrl":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","caption":"Kirat"},"sameAs":["http:\/\/jassweb.com"],"url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/23962","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/comments?post=23962"}],"version-history":[{"count":0,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/23962\/revisions"}],"wp:attachment":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/media?parent=23962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/categories?post=23962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/tags?post=23962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}