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Yalnızca `Object.create(null)` prototype'sız bir nesne üretir (d).",{"id":170,"topic":9,"difficulty":153,"body":171,"options":172,"correct_key":157,"explanation":181},"019f7517-0f86-7402-b9c3-bc24c381e7fd","```javascript\nfunction Animal(name) {\n  this.name = name;\n}\nAnimal.prototype.speak = function () {\n  return this.name + ' makes a noise.';\n};\nconst dog = new Animal('Rex');\nconsole.log(dog.speak());\n```\nBu ne yazdırır?",[173,175,177,179],{"key":157,"text":174},"Rex makes a noise.",{"key":160,"text":176},"undefined makes a noise.",{"key":163,"text":178},"TypeError: dog.speak is not a function",{"key":166,"text":180},"makes a noise.","`new Animal('Rex')`, yeni örnek üzerinde `this.name = 'Rex'` atar; `speak` ise prototype zincirinde yukarı çıkılıp `Animal.prototype`'da bulunur. `dog.speak()` çağrısı `this`'i `dog`'a bağlar, dolayısıyla `this.name` `'Rex'`'tir.",{"id":183,"topic":9,"difficulty":153,"body":184,"options":185,"correct_key":157,"explanation":194},"019f7517-0f86-7a54-843d-9bed7accfd44","`Object.create(proto)` ne yapar?",[186,188,190,192],{"key":157,"text":187},"Prototype'ı `proto` olan yeni bir nesne oluşturur",{"key":160,"text":189},"`proto`'nun tüm özelliklerini yepyeni düz bir nesneye kopyalar",{"key":163,"text":191},"`proto`'yu dondurup aynı referansı döndürür",{"key":166,"text":193},"`proto`'yu extend eden yeni bir class tanımlar","`Object.create(proto)`, içteki `[[Prototype]]`'ı `proto` olarak ayarlanmış taze bir nesne döndürür — özellikleri kopyalamaz, bağlar. Yeni nesnede bulunamayan aramalar `proto`'ya düşer.",{"id":196,"topic":9,"difficulty":197,"body":198,"options":199,"correct_key":160,"explanation":208},"019f7517-0f87-7041-b7c8-22389d612462",2,"```javascript\nconst obj = {\n  value: 42,\n  getValue: function () { return this.value; },\n};\nconst fn = obj.getValue;\nconsole.log(fn());\n```\nBunun düz (non-strict) bir script olarak çalıştığını varsay. Ne yazdırılır?",[200,202,204,206],{"key":157,"text":201},"42",{"key":160,"text":203},"undefined",{"key":163,"text":205},"TypeError: Cannot read properties of undefined",{"key":166,"text":207},"ReferenceError: value is not defined","`fn`, hiçbir alıcı (receiver) olmadan çağrılır; non-strict modda `this` global nesneye düşer ve onda `value` özelliği yoktur — `this.value` hata değil `undefined`'dır. Strict modda ise `this` `undefined` olacağından bunun yerine (c) fırlatılırdı.",{"id":210,"topic":9,"difficulty":197,"body":211,"options":212,"correct_key":157,"explanation":220},"019f7517-0f87-76bb-b2bc-9f2101ea6997","```javascript\nconst obj = {\n  value: 10,\n  regular: function () {\n    return (() => this.value)();\n  },\n};\nconsole.log(obj.regular());\n```\nNe yazdırılır?",[213,215,216,218],{"key":157,"text":214},"10",{"key":160,"text":203},{"key":163,"text":217},"TypeError",{"key":166,"text":219},"NaN","Arrow fonksiyonların kendi `this`'i yoktur — `this`'i sözlüksel (lexical) olarak sarmalayan scope'tan alırlar. Arrow, `regular`'ın içinde tanımlı, dolayısıyla `this`'i `regular`'ın `this`'i neyse odur; bu da `obj.regular()` çağrısı olduğu için `obj`'dir. Yani `this.value` `10`'dur.",{"id":222,"topic":9,"difficulty":197,"body":223,"options":224,"correct_key":166,"explanation":231},"019f7517-0f8b-742d-86e8-00334bc0f5b3","```javascript\nfunction sum(a, b) {\n  return this.base + a + b;\n}\nconsole.log(sum.call({ base: 100 }, 1, 2));\n```\nNe yazdırılır?",[225,227,228,229],{"key":157,"text":226},"3",{"key":160,"text":219},{"key":163,"text":217},{"key":166,"text":230},"103","`Function.prototype.call`, `sum`'ı `this`'i açıkça `{ base: 100 }` olarak ayarlayarak, kalan argümanları da tek tek (`1`, `2`) geçirerek çağırır. Sonuç `100 + 1 + 2 = 103`'tür.",{"fields":233,"seniorities":407,"interview_shapes":408,"locales":413,"oauth":415,"question_count":418,"coach_enabled":419,"jd_match_enabled":419},[234,259,267,284,308,321,340,359,381,388,394,401],{"key":235,"name_tr":236,"name_en":236,"sort":153,"specializations":237},"backend","Backend",[238,241,244,247,250,253,256],{"key":239,"name":240,"field":235},"general","Genel",{"key":242,"name":243,"field":235},"go","Go",{"key":245,"name":246,"field":235},"python","Python",{"key":248,"name":249,"field":235},"java","Java",{"key":251,"name":252,"field":235},"csharp","C#\u002F.NET",{"key":254,"name":255,"field":235},"nodejs","Node.js",{"key":257,"name":258,"field":235},"php","PHP",{"key":5,"name_tr":6,"name_en":6,"sort":197,"specializations":260},[261,262,263,264,265,266],{"key":239,"name":240,"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":268,"name_tr":269,"name_en":269,"sort":270,"specializations":271},"fullstack","Fullstack",3,[272,273,274,275,276,277,278,279,280,281,282,283],{"key":239,"name":240,"field":268},{"key":242,"name":243,"field":235},{"key":245,"name":246,"field":235},{"key":248,"name":249,"field":235},{"key":251,"name":252,"field":235},{"key":254,"name":255,"field":235},{"key":257,"name":258,"field":235},{"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":285,"name_tr":286,"name_en":286,"sort":287,"specializations":288},"devops-cloud","DevOps \u002F Cloud",4,[289,290,293,296,299,302,305],{"key":239,"name":240,"field":285},{"key":291,"name":292,"field":285},"aws","AWS",{"key":294,"name":295,"field":285},"gcp","GCP",{"key":297,"name":298,"field":285},"azure","Azure",{"key":300,"name":301,"field":285},"kubernetes","Kubernetes",{"key":303,"name":304,"field":285},"terraform","Terraform",{"key":306,"name":307,"field":285},"linux","Linux",{"key":309,"name_tr":310,"name_en":310,"sort":311,"specializations":312},"ai-engineer","AI Engineer",5,[313,314,315,318],{"key":239,"name":240,"field":309},{"key":245,"name":246,"field":309},{"key":316,"name":317,"field":309},"llm-rag","LLM\u002FRAG",{"key":319,"name":320,"field":309},"mlops","MLOps",{"key":322,"name_tr":323,"name_en":324,"sort":325,"specializations":326},"database","Veritabanı","Database",6,[327,328,331,334,337],{"key":239,"name":240,"field":322},{"key":329,"name":330,"field":322},"postgresql","PostgreSQL",{"key":332,"name":333,"field":322},"mysql","MySQL",{"key":335,"name":336,"field":322},"mongodb","MongoDB",{"key":338,"name":339,"field":322},"redis","Redis",{"key":341,"name_tr":342,"name_en":343,"sort":344,"specializations":345},"mobile","Mobil","Mobile",7,[346,347,350,353,356],{"key":239,"name":240,"field":341},{"key":348,"name":349,"field":341},"ios-swift","iOS (Swift)",{"key":351,"name":352,"field":341},"android-kotlin","Android (Kotlin)",{"key":354,"name":355,"field":341},"flutter","Flutter",{"key":357,"name":358,"field":341},"react-native","React Native",{"key":360,"name_tr":361,"name_en":362,"sort":363,"specializations":364},"security","Güvenlik","Security",8,[365,366,369,372,375,378],{"key":239,"name":240,"field":360},{"key":367,"name":368,"field":360},"appsec","AppSec",{"key":370,"name":371,"field":360},"offensive-pentest","Offensive \u002F Pentest",{"key":373,"name":374,"field":360},"cloud-security","Cloud Security",{"key":376,"name":377,"field":360},"devsecops","DevSecOps",{"key":379,"name":380,"field":360},"blue-team-incident","Blue Team \u002F Incident",{"key":382,"name_tr":383,"name_en":384,"sort":385,"specializations":386},"qa-test-automation","QA \u002F Test Otomasyonu","QA \u002F Test Automation",9,[387],{"key":239,"name":240,"field":382},{"key":389,"name_tr":390,"name_en":390,"sort":391,"specializations":392},"data-engineer","Data Engineer",10,[393],{"key":239,"name":240,"field":389},{"key":395,"name_tr":396,"name_en":397,"sort":398,"specializations":399},"game-dev","Oyun Geliştirme","Game Development",11,[400],{"key":239,"name":240,"field":395},{"key":402,"name_tr":403,"name_en":403,"sort":404,"specializations":405},"ml-engineer","ML Engineer",12,[406],{"key":239,"name":240,"field":402},[14,15,16],{"junior":409,"mid":411,"senior":412},{"questions":410,"median_sec":3},20,{"questions":410,"median_sec":3},{"questions":410,"median_sec":3},[10,414],"en",[416,417],"google","github",21750,true]