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  • JavaScript Documentation48টি অধ্যায়
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  • Introduction
  • JavaScript কী?
  • Syntax & Comments
  • Variables
  • Data Types: Basics
  • Data Types: Conversion
  • Data Types: Advanced
  • Strings
  • Numbers & Math
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  • Functions: Intermediate
  • Functions: Advanced
  • Scope & Hoisting
  • Closures & this
  • ES6+ Modern
  • Arrays: Basics
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  • Objects: Advanced
  • Class: Basics
  • Class: Intermediate
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  • Async JavaScript
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  • Event Loop Deep
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  • Modern JavaScript
  1. Docs
  3. JavaScript
  5. প্রশ্ন/উত্তর
  7. Modern JavaScript
JavaScriptModern JavaScript

JavaScript Modern JavaScript — প্রশ্ন/উত্তর

Optional chaining, nullish coalescing, iterator-generator, Map-Set, garbage collection ও memory leak — ES6+ ও runtime-এর মূল বিষয়।

  1. Q46. What are optional chaining (?.) and nullish coalescing (??)?
  2. Q47. What are iterators and generators in JavaScript?
  3. Q48. What are Map and Set, and how are they different from objects and arrays?
  4. Q49. What is garbage collection in JavaScript and how does memory management work?
  5. Q50. What are common causes of memory leaks in JavaScript?
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