{"id":14195,"date":"2021-07-01T16:26:05","date_gmt":"2021-07-01T14:26:05","guid":{"rendered":"https:\/\/www.software-developer-india.com\/hvorfor-node-js-er-fantastisk\/"},"modified":"2021-07-04T09:33:46","modified_gmt":"2021-07-04T07:33:46","slug":"hvorfor-node-js-er-fantastisk","status":"publish","type":"post","link":"https:\/\/www.software-developer-india.com\/da\/hvorfor-node-js-er-fantastisk\/","title":{"rendered":"Hvorfor Node.JS er fantastisk"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Hvorfor Node.JS er fantastisk<\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Node-JS-1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"575\" height=\"252\" src=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Node-JS-1.jpg\" alt=\"\" class=\"wp-image-3101\" srcset=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Node-JS-1.jpg 575w, https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Node-JS-1-300x131.jpg 300w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Udviklet af Ryan Dahl, Node.JS, er det mest trendy og mest efterspurgte v\u00e6rkt\u00f8j inden for webudvikling et af de mest elskede programmeringssprog til serverudviklingsprogrammer, der bruges af udviklere over hele verden.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Programmeringssproget er bygget oven p\u00e5 Google Chrome V8-motoren og ECMAscript. Dette betyder, at det meste af den syntaks, der bruges deri, har utrolige ligheder med Javascript i frontend inklusive objekter, funktioner og metoder. Det er open source, er skrevet i JS og g\u00f8r et godt valg til realtidsapplikationer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1) Ideel til applikationer i realtid<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Programmeringssproget leveres med visse funktioner, der g\u00f8r det ideelt til at oprette applikationer i realtid, is\u00e6r til chats og spil. Sproget er ogs\u00e5 bare perfekt til dataintensive applikationer i realtid. Vidste du, hvilke store applikationer som Paypal, LinkedIn, eBay alle er bygget ved hj\u00e6lp af Node.js. Funktionerne p\u00e5 sproget er designet til ikke-blokering, hvilket g\u00f8r denne funktion til en af de st\u00f8rste forskelle mellem Node.js og PHP. De fleste af funktionerne i PHP blokerer indtil afslutningen.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2) L\u00f8ser alle databaseforesp\u00f8rgsler<\/strong><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><a href=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Database-.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"575\" height=\"298\" src=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Database-.jpg\" alt=\"\" class=\"wp-image-3102\" srcset=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Database-.jpg 575w, https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2018\/02\/Database--300x155.jpg 300w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/a><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Udviklere beh\u00f8ver ikke bekymre sig om at modulere syntaksforskellene, n\u00e5r de forener nye NoSQL-databaser som CouchDB og MongoDB (de har Javascript-ramme) med Node.js. De passer godt sammen med apps i realtid og kan f\u00e5 det til at k\u00f8re uden problemer med datakonvertering eller mismatch takket v\u00e6re JSON-lagrede dataformat. P\u00e5 den anden side, hvis du brugte Ruby on Rails-platformen, skal du muligvis konvertere.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3) Kodning er let for udviklere<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Udviklere har lettere ved at arbejde p\u00e5 denne open source-platform, fordi det lader dem skrive JS for b\u00e5de klientsiden og serversiden. Dette g\u00f8r det lettere at overf\u00f8re data. Eventuelle \u00e6ndringer i data, der findes p\u00e5 serveren, reflekteres \u00f8jeblikkeligt automatisk og uden tidstab. Dette giver dem mulighed for at udvikle hurtige, skalerbare netv\u00e6rksapps. En webapp-ramme kendt som Meteor underst\u00f8tter b\u00e5de klient- og serversides codebase.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4) Det er hurtigt og rigtigt hurtigt<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">En anden ting, der virkelig st\u00e5r til fordel for dette sprog, er at det lader dig oprette hurtige, robuste netv\u00e6rksapplikationer, s\u00e5 du kan oprette parallelle forbindelser med \u00f8get kapacitet. Udviklere kan ogs\u00e5 arbejde hurtigt, men de skal v\u00e6re meget forsigtige, n\u00e5r de skriver koder for at sikre, at udviklingen er p\u00e5 rette spor. LinkedIn kan ogs\u00e5 bruges som et eksempel p\u00e5 det.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Virksomheden brugte Ruby p\u00e5 skinner, f\u00f8r det skiftede til Node.js, og dette har gjort det muligt for dem at reducere deres antal servere fra 30 til 3. Det har ogs\u00e5 gjort det muligt for dem at oprette applikationer, der fungerer 20 gange hurtigere. Paypal havde ogs\u00e5 stor fordel af at skifte til sproget; de var i stand til at h\u00e5ndtere dobbelt anmodningerne.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5) Dynamisk og meget st\u00e6rk NPM<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">NPM st\u00e5r for Node Package Manager, og der er mere end 60.000 moduler i den. Node.js er en open source-teknologi, og udviklere nyder et delt lager af dynamiske v\u00e6rkt\u00f8jer og moduler. Antallet af moduler i NPM er langt bedre end dem i RoR-platformen, hvilket giver teknologien en fordel ved at g\u00f8re den ekstremt hurtig og robust med en perfekt afh\u00e6ngighedsstyring.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6) Det fungerer som proxyserver<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Rammen kan fungere som en proxy for et antal tjenester, der har forskellige svartider. Det samme kan g\u00f8res for at indsamle data fra forskellige kilder. Node.js fungerer som Proxy, is\u00e6r hvis der er en applikation p\u00e5 serversiden, der besk\u00e6ftiger sig med dataindsamling, gemmer video og billeder og lignende aktiviteter, og den involverede virksomhed ikke har infrastrukturen til at administrere en proxy.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>7) Det kan g\u00e5 med datastreaming<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">HTTP-anmodning og svar betragtes som to separate begivenheder p\u00e5 webplatforme, men de er i virkeligheden datastr\u00f8mme. Node.js hj\u00e6lper dig med at bruge denne funktion til sin fulde kapacitet, s\u00e5 du kan behandle filer p\u00e5 samme tid, som de uploades. Dette holder den samlede behandlingstid nede, is\u00e6r n\u00e5r data kommer i streams. Dette ville ogs\u00e5 v\u00e6re tilf\u00e6ldet for lydoptagelse og realtidsvideo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>8) Let at \u00e6ndre din applikation<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Det er let at \u00e6ndre en applikation lavet ved hj\u00e6lp af sm\u00e5 moduler, da du kan foretage \u00e6ndringer og slette det, der ikke kr\u00e6ves, uden at p\u00e5virke hele kodebasen. Dette giver dig mulighed for at administrere og vedligeholde selv komplekse apps.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>9) Kan h\u00e5ndtere et stort antal anmodninger<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Node.js-applikationer har en Single Threaded Event Loop-model til at h\u00e5ndtere flere samtidige klienter. Det g\u00f8r det ogs\u00e5 lettere for teknologien at administrere et stort antal anmodninger. Andre webteknologier som ASP.NET, JSP, Spring MVC, HTML, jQuery, Ajax osv. F\u00f8lger Multithreaded Request-Response-arkitektur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>10) Slip af afh\u00e6ngigheder mellem siloer<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Webudviklingsfunktion kan g\u00f8res glat ved at kombinere frontend- og backend-holdene sammen i en enkelt enhed for at fungere problemfrit og derved slippe af med afh\u00e6ngighed mellem siloer. Du kan ogs\u00e5 oml\u00e6gge din kode, s\u00e5 du ikke beh\u00f8ver at bekymre dig om n\u00f8dvendigheden af at have cirkul\u00e6re afh\u00e6ngigheder, fordi det kan g\u00f8re det til en virkelig rodet aff\u00e6re. Og du kommer med renere koder, hvilket g\u00f8r det nyttigt for dig ikke kun for dig, men ogs\u00e5 for alle andre, der opretholder disse koder i fremtiden.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>11) Valg af dette sprog forbedrer din produktivitet<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Hele effektivitetsniveauet i din webudvikling g\u00e5r adskillige hak h\u00f8jere, n\u00e5r du v\u00e6lger Node.js, da det bygger bro over kl\u00f8ften mellem frontend og backend-udvikling. Dette kan hj\u00e6lpe med at afslutte opgaven hurtigere end forventet, og du skal kun have det mindste antal udviklere p\u00e5 dit team.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Afsluttende tanker<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lige siden sin oprindelige udgivelse i 2009 er Node.js kommet langt, og det er et af de mest popul\u00e6re open source-platforme, hvor udviklere laver apps, endda realtid. Det er robust, superhurtigt (du kan bruge, genbruge og dele koder mellem backend og frontend for at fremskynde udviklingsprocessen), hj\u00e6lper dig med at opbygge skalerbar applikation med et stadigt voksende NPM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Udviklere p\u00e5 alle f\u00e6rdighedsniveauer kan bruge denne teknologi, og da der er denne mulighed for at bruge JS p\u00e5 b\u00e5de backend og frontend, kan de udforske masser af nye veje inden for webudvikling. Og det kommer med masser af API&#8217;er, bare perfekte til backend-udvikling, for eksempel support til filsystemer, http-anmodninger, streams, underordnede processer osv.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Interessante artikler:<br><a href=\"http:\/\/chetansurpur.com\/blog\/2010\/10\/why-node-js-is-totally-awesome.html\">\u00c5rsager til, at Node JS er s\u00e5 stor<\/a><br><a href=\"http:\/\/nodesource.com\/blog\/the-21-most-awesome-awesome-lists-for-node-js-developers\/\">Node JS Nyttige tip til udviklere af NodeSource<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Billedkilde: Flickr.com\/ Nima \/ Hopkins<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"alignleft\"><img decoding=\"async\" src=\"https:\/\/www.software-developer-india.com\/wp-content\/uploads\/2015\/03\/2.png\" alt=\"\" class=\"wp-image-229\"\/><\/figure><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Forfatteren: Reema Oamkumar er engageret som en tankeleder p\u00e5 www.Software-Developer-India.com, som er en del af YUHIRO Group. YUHIRO er en tysk-indisk virksomhed, der leverer programm\u00f8rer til IT-virksomheder, agenturer og IT-afdelinger.<\/p>\n<div class=\"shariff\"><ul class=\"shariff-buttons theme-default orientation-horizontal buttonsize-medium\"><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fwww.software-developer-india.com%2Fda%2Fhvorfor-node-js-er-fantastisk%2F&text=Hvorfor%20Node.JS%20er%20fantastisk\" title=\"Del p\u00e5 X\" aria-label=\"Del p\u00e5 X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; background-color:#000; color:#fff\" target=\"_blank\"><span class=\"shariff-icon\" style=\"\"><svg width=\"32px\" height=\"20px\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 24 24\"><path fill=\"#000\" d=\"M14.258 10.152L23.176 0h-2.113l-7.747 8.813L7.133 0H0l9.352 13.328L0 23.973h2.113l8.176-9.309 6.531 9.309h7.133zm-2.895 3.293l-.949-1.328L2.875 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