JS Questions Assignment
1. JavaScript kya hoti hai?
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JavaScript ek programming language hai jo websites ko interactive banati hai.
2. JavaScript ka use kaha hota hai?
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Websites, web apps aur backend mein use hoti hai.
3. Browser JS ko kaise run karta hai?
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Browser ka JS engine code run karta hai.
4. JS compiled hai ya interpreted?
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Interpreted language hai.
5. Hello World program
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console.log("Hello World");
6. Interpreter kya hota hai?
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Line by line code run karta hai.
7. Compiler kya hota hai?
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Poora code ek saath convert karta hai.
8. JS interpreter based kyun hai?
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Kyunkay yeh line by line run hoti hai.
9. Interpreter vs Compiler
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Interpreter slow, compiler fast.
10. Compiler language example
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C, C++
11. Variable kya hota hai?
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Data store karne ka container.
12. var let const difference?
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var old, let change hota hai, const change nahi hota.
13. var scope?
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Function scope
14. let scope?
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Block scope
15. const kab use hota hai?
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Jab value change nahi karni ho
16. const reassign?
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No
17. var output?
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20
18. let output?
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15
19. const error?
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Reassign allowed nahi
20. Data types kitne?
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2 types
48. true && false?
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false
49. x++ output?
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6
50. ++y output?
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6