[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"me":3,"catalog:tr:frontend\u002Fjavascript-async-concurrency":4,"config":235},null,{"field_key":5,"field_name":6,"seniority":7,"topic_key":8,"topic_name":9,"spec_key":7,"spec_name":7,"locale":10,"cell_total":11,"field_total":12,"seniorities":13,"topics":17,"specs":133,"samples":150},"frontend","Frontend","","javascript-async-concurrency","Javascript Async Concurrency","tr",75,2925,[14,15,16],"junior","mid","senior",[18,21,24,27,30,33,36,39,42,45,46,49,52,55,58,61,64,67,70,73,76,79,82,85,88,91,94,97,100,103,106,109,112,115,118,121,124,127,130],{"key":19,"name":20,"count":11},"accessibility","Accessibility",{"key":22,"name":23,"count":11},"angular-change-detection","Angular Change Detection",{"key":25,"name":26,"count":11},"angular-components-lifecycle","Angular Components Lifecycle",{"key":28,"name":29,"count":11},"angular-dependency-injection","Angular Dependency Injection",{"key":31,"name":32,"count":11},"angular-directives-pipes","Angular Directives Pipes",{"key":34,"name":35,"count":11},"angular-router-forms","Angular Router Forms",{"key":37,"name":38,"count":11},"angular-testing-performance","Angular Testing Performance",{"key":40,"name":41,"count":11},"css-layout","Css Layout",{"key":43,"name":44,"count":11},"dom-browser-apis","Dom Browser Apis",{"key":8,"name":9,"count":11},{"key":47,"name":48,"count":11},"javascript-language","Javascript Language",{"key":50,"name":51,"count":11},"javascript-memory-performance","Javascript Memory Performance",{"key":53,"name":54,"count":11},"javascript-modules-bundling","Javascript Modules Bundling",{"key":56,"name":57,"count":11},"javascript-prototypes-oop","Javascript Prototypes Oop",{"key":59,"name":60,"count":11},"javascript-runtime-apis","Javascript Runtime Apis",{"key":62,"name":63,"count":11},"javascript-testing-tooling","Javascript Testing Tooling",{"key":65,"name":66,"count":11},"performance","Performance",{"key":68,"name":69,"count":11},"react-components-jsx","React Components Jsx",{"key":71,"name":72,"count":11},"react-context-state","React Context State",{"key":74,"name":75,"count":11},"react-effects-lifecycle","React Effects Lifecycle",{"key":77,"name":78,"count":11},"react-forms-suspense","React Forms Suspense",{"key":80,"name":81,"count":11},"react-hooks-state","React Hooks State",{"key":83,"name":84,"count":11},"react-rendering-performance","React Rendering Performance",{"key":86,"name":87,"count":11},"rendering-reactivity","Rendering Reactivity",{"key":89,"name":90,"count":11},"state-management","State Management",{"key":92,"name":93,"count":11},"testing","Testing",{"key":95,"name":96,"count":11},"typescript-advanced-types","Typescript Advanced Types",{"key":98,"name":99,"count":11},"typescript-generics","Typescript Generics",{"key":101,"name":102,"count":11},"typescript-modules-declarations","Typescript Modules Declarations",{"key":104,"name":105,"count":11},"typescript-narrowing-control-flow","Typescript Narrowing Control Flow",{"key":107,"name":108,"count":11},"typescript-tooling-config","Typescript Tooling Config",{"key":110,"name":111,"count":11},"typescript-type-fundamentals","Typescript Type Fundamentals",{"key":113,"name":114,"count":11},"vue-components-props","Vue Components Props",{"key":116,"name":117,"count":11},"vue-composition-api","Vue Composition Api",{"key":119,"name":120,"count":11},"vue-directives-templates","Vue Directives Templates",{"key":122,"name":123,"count":11},"vue-performance-testing","Vue Performance Testing",{"key":125,"name":126,"count":11},"vue-reactivity-system","Vue Reactivity System",{"key":128,"name":129,"count":11},"vue-router-state-management","Vue Router State Management",{"key":131,"name":132,"count":11},"web-security","Web Security",[134,138,141,144,147],{"key":135,"name":136,"count":137},"angular","Angular",450,{"key":139,"name":140,"count":137},"javascript","JavaScript",{"key":142,"name":143,"count":137},"react","React",{"key":145,"name":146,"count":137},"typescript","TypeScript",{"key":148,"name":149,"count":137},"vue","Vue",[151,169,182,196,209,222],{"id":152,"topic":9,"difficulty":153,"body":154,"options":155,"correct_key":160,"explanation":168},"019f7517-0e99-7802-bc84-21cba28612ec",1,"Bir JavaScript Promise'i üç durumdan birinde olabilir. Bu durumları doğru adlandıran seçenek hangisi?",[156,159,162,165],{"key":157,"text":158},"a","başladı, bekliyor, bitti",{"key":160,"text":161},"b","pending, fulfilled, rejected",{"key":163,"text":164},"c","açık, çözüldü, kapalı",{"key":166,"text":167},"d","kuyrukta, çalışıyor, bitti","Bir Promise pending olarak başlar, sonra tam olarak bir kez fulfilled (bir değer mevcut) ya da rejected (bir hata oluştu) durumuna geçer. Bir kez sonuçlandıktan sonra durumu bir daha değişmez.",{"id":170,"topic":9,"difficulty":153,"body":171,"options":172,"correct_key":163,"explanation":181},"019f7517-0edd-7403-9097-3f08712d2025","Bir `async function` çağrıldığında, gövdesi ne `return` ederse etsin her zaman ne döner?",[173,175,177,179],{"key":157,"text":174},"`return`'den gelen ham değeri, sarmalanmamış olarak",{"key":160,"text":176},"Açıkça bir Promise return etmedikçe `undefined`",{"key":163,"text":178},"Return edilen değere resolve olan bir Promise",{"key":166,"text":180},"Hiçbir şey — dönüş değeri için bir callback bağlaman gerekir","Bir `async function` çağırmak her zaman bir Promise üretir. Gövde düz bir değer return ederse, bu değer dönen Promise'in resolve değeri olur; bir Promise return ederse, dıştaki Promise onun durumunu benimser.",{"id":183,"topic":9,"difficulty":184,"body":185,"options":186,"correct_key":157,"explanation":195},"019f7517-0ee3-750e-99a3-5294c7cf6822",2,"```javascript\nconsole.log('start');\nsetTimeout(() => console.log('timeout'), 0);\nPromise.resolve().then(() => console.log('promise'));\nconsole.log('end');\n```\nSırasıyla ne loglanır?",[187,189,191,193],{"key":157,"text":188},"start, end, promise, timeout",{"key":160,"text":190},"start, promise, end, timeout",{"key":163,"text":192},"start, end, timeout, promise",{"key":166,"text":194},"start, timeout, end, promise","Önce tüm senkron kod çalışır (start, end). Ardından event loop macrotask kuyruğuna geçmeden önce microtask kuyruğu (`.then` callback'i) tamamen boşalır, bu yüzden `setTimeout` daha önce zamanlanmış olsa bile `promise`, `timeout`'tan önce loglanır.",{"id":197,"topic":9,"difficulty":184,"body":198,"options":199,"correct_key":166,"explanation":208},"019f7517-0ee7-7f40-b03d-3581175f9f61","```javascript\nconsole.log('a');\nPromise.resolve(42).then((v) => console.log('b', v));\nconsole.log('c');\n```\nSırasıyla ne loglanır?",[200,202,204,206],{"key":157,"text":201},"a, b 42, c",{"key":160,"text":203},"b 42, a, c",{"key":163,"text":205},"a, c, b, sonra 42 ayrı",{"key":166,"text":207},"a, c, b 42","`Promise.resolve(42)` zaten fulfilled durumdadır ama `.then` callback'i yine de bir microtask olarak zamanlanır — asla senkron çalışmaz. Bu yüzden kalan senkron satır (`console.log('c')`) önce çalışır, `b 42` ise mevcut script bittikten sonra loglanır.",{"id":210,"topic":9,"difficulty":153,"body":211,"options":212,"correct_key":160,"explanation":221},"019f7517-0eee-7067-9038-e26e1fd8806a","`await` anahtar kelimesi bir fonksiyon gövdesinin en üst seviyesinde nerede kullanılabilir?",[213,215,217,219],{"key":157,"text":214},"Bir Promise söz konusu olduğu sürece herhangi bir fonksiyon içinde",{"key":160,"text":216},"Yalnızca `async` olarak tanımlanmış bir fonksiyon içinde (ya da top-level await destekleyen bir modülün en üstünde)",{"key":163,"text":218},"Yalnızca `.then()` callback'leri içinde",{"key":166,"text":220},"Her yerde, varsayılan olarak senkron bir anahtar kelime gibi çalışır","`await`, yalnızca `async` işaretli bir fonksiyon içinde ya da top-level await destekleyen bir ES modülünün en üst seviyesinde geçerlidir. Sıradan bir fonksiyonda kullanmak syntax hatasıdır.",{"id":223,"topic":9,"difficulty":184,"body":224,"options":225,"correct_key":163,"explanation":234},"019f7517-0eef-7375-8469-40a77c41de7a","```javascript\nPromise.resolve(1)\n  .then((v) => v + 1)\n  .then((v) => v * 10)\n  .then((v) => console.log(v));\n```\nNe loglanır?",[226,228,230,232],{"key":157,"text":227},"1",{"key":160,"text":229},"2",{"key":163,"text":231},"20",{"key":166,"text":233},"11","Her `.then`, bir öncekinin döndürdüğü değeri alır: 1 → (1+1)=2 → (2*10)=20 → loglanır. `.then`'den düz bir değer return etmek, o değeri zincirdeki bir sonraki `.then`'e iletir.",{"fields":236,"seniorities":410,"interview_shapes":411,"locales":416,"oauth":418,"question_count":421,"coach_enabled":422,"jd_match_enabled":422},[237,262,270,287,311,324,343,362,384,391,397,404],{"key":238,"name_tr":239,"name_en":239,"sort":153,"specializations":240},"backend","Backend",[241,244,247,250,253,256,259],{"key":242,"name":243,"field":238},"general","Genel",{"key":245,"name":246,"field":238},"go","Go",{"key":248,"name":249,"field":238},"python","Python",{"key":251,"name":252,"field":238},"java","Java",{"key":254,"name":255,"field":238},"csharp","C#\u002F.NET",{"key":257,"name":258,"field":238},"nodejs","Node.js",{"key":260,"name":261,"field":238},"php","PHP",{"key":5,"name_tr":6,"name_en":6,"sort":184,"specializations":263},[264,265,266,267,268,269],{"key":242,"name":243,"field":5},{"key":139,"name":140,"field":5},{"key":145,"name":146,"field":5},{"key":142,"name":143,"field":5},{"key":148,"name":149,"field":5},{"key":135,"name":136,"field":5},{"key":271,"name_tr":272,"name_en":272,"sort":273,"specializations":274},"fullstack","Fullstack",3,[275,276,277,278,279,280,281,282,283,284,285,286],{"key":242,"name":243,"field":271},{"key":245,"name":246,"field":238},{"key":248,"name":249,"field":238},{"key":251,"name":252,"field":238},{"key":254,"name":255,"field":238},{"key":257,"name":258,"field":238},{"key":260,"name":261,"field":238},{"key":139,"name":140,"field":5},{"key":145,"name":146,"field":5},{"key":142,"name":143,"field":5},{"key":148,"name":149,"field":5},{"key":135,"name":136,"field":5},{"key":288,"name_tr":289,"name_en":289,"sort":290,"specializations":291},"devops-cloud","DevOps \u002F Cloud",4,[292,293,296,299,302,305,308],{"key":242,"name":243,"field":288},{"key":294,"name":295,"field":288},"aws","AWS",{"key":297,"name":298,"field":288},"gcp","GCP",{"key":300,"name":301,"field":288},"azure","Azure",{"key":303,"name":304,"field":288},"kubernetes","Kubernetes",{"key":306,"name":307,"field":288},"terraform","Terraform",{"key":309,"name":310,"field":288},"linux","Linux",{"key":312,"name_tr":313,"name_en":313,"sort":314,"specializations":315},"ai-engineer","AI Engineer",5,[316,317,318,321],{"key":242,"name":243,"field":312},{"key":248,"name":249,"field":312},{"key":319,"name":320,"field":312},"llm-rag","LLM\u002FRAG",{"key":322,"name":323,"field":312},"mlops","MLOps",{"key":325,"name_tr":326,"name_en":327,"sort":328,"specializations":329},"database","Veritabanı","Database",6,[330,331,334,337,340],{"key":242,"name":243,"field":325},{"key":332,"name":333,"field":325},"postgresql","PostgreSQL",{"key":335,"name":336,"field":325},"mysql","MySQL",{"key":338,"name":339,"field":325},"mongodb","MongoDB",{"key":341,"name":342,"field":325},"redis","Redis",{"key":344,"name_tr":345,"name_en":346,"sort":347,"specializations":348},"mobile","Mobil","Mobile",7,[349,350,353,356,359],{"key":242,"name":243,"field":344},{"key":351,"name":352,"field":344},"ios-swift","iOS (Swift)",{"key":354,"name":355,"field":344},"android-kotlin","Android (Kotlin)",{"key":357,"name":358,"field":344},"flutter","Flutter",{"key":360,"name":361,"field":344},"react-native","React Native",{"key":363,"name_tr":364,"name_en":365,"sort":366,"specializations":367},"security","Güvenlik","Security",8,[368,369,372,375,378,381],{"key":242,"name":243,"field":363},{"key":370,"name":371,"field":363},"appsec","AppSec",{"key":373,"name":374,"field":363},"offensive-pentest","Offensive \u002F Pentest",{"key":376,"name":377,"field":363},"cloud-security","Cloud Security",{"key":379,"name":380,"field":363},"devsecops","DevSecOps",{"key":382,"name":383,"field":363},"blue-team-incident","Blue Team \u002F Incident",{"key":385,"name_tr":386,"name_en":387,"sort":388,"specializations":389},"qa-test-automation","QA \u002F Test Otomasyonu","QA \u002F Test Automation",9,[390],{"key":242,"name":243,"field":385},{"key":392,"name_tr":393,"name_en":393,"sort":394,"specializations":395},"data-engineer","Data Engineer",10,[396],{"key":242,"name":243,"field":392},{"key":398,"name_tr":399,"name_en":400,"sort":401,"specializations":402},"game-dev","Oyun Geliştirme","Game Development",11,[403],{"key":242,"name":243,"field":398},{"key":405,"name_tr":406,"name_en":406,"sort":407,"specializations":408},"ml-engineer","ML Engineer",12,[409],{"key":242,"name":243,"field":405},[14,15,16],{"junior":412,"mid":414,"senior":415},{"questions":413,"median_sec":3},20,{"questions":413,"median_sec":3},{"questions":413,"median_sec":3},[10,417],"en",[419,420],"google","github",21750,true]