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Question-1. What is Nim?
Answer-1: Nim is a statically typed, compiled programming language that focuses on performance, readability, and metaprogramming.
Question-2. What was Nim?s original name?
Answer-2: Nim was originally called Nimrod but was renamed to Nim in 2014.
Question-3. Who created Nim?
Answer-3: Nim was created by Andreas Rumpf.
Question-4. What are the key features of Nim?
Answer-4: Nim features performance like C, syntax similar to Python, and powerful metaprogramming.
Question-5. How do you declare a variable in Nim?
Answer-5: Using var: var x: int = 10.
Question-6. What is the difference between let and var in Nim?
Answer-6: let declares an immutable variable, while var allows reassignment.
Question-7. What data types does Nim support?
Answer-7: Integers, floats, strings, arrays, sequences, tuples, objects, and more.
Question-8. How do you define a function in Nim?
Answer-8: Using the proc keyword: proc add(a, b: int): int = return a + b.
Question-9. What is a seq in Nim?
Answer-9: seq[T] is a dynamic sequence (resizable array) similar to lists in Python.
Question-10. How do you define a loop in Nim?
Answer-10: Using for: for i in 1..10: echo i.
Question-11. What is the syntax for a conditional statement in Nim?
Answer-11: if x > 10: echo "Big" elif x == 10: echo "Equal" else: echo "Small".
Question-12. How do you concatenate strings in Nim?
Answer-12: Using &: "Hello" & " World".
Question-13. What is Nim?s package manager?
Answer-13: Nimble is the official package manager for Nim.
Question-14. How do you install a package in Nim?
Answer-14: nimble install
Question-15. What are the main compilation targets of Nim?
Answer-15: Nim compiles to C, C++, and JavaScript.
Question-16. How do you compile a Nim program?
Answer-16: Using nim c
Question-17. What is metaprogramming in Nim?
Answer-17: Metaprogramming allows code generation and compile-time execution using macros.
Question-18. How do you define a tuple in Nim?
Answer-18: let t = (name: "Alice", age: 30).
Question-19. How do you access tuple elements?
Answer-19: t.name or t.age.
Question-20. How do you declare an array in Nim?
Answer-20: var arr: array[3, int] = [1, 2, 3].
Question-21. What is the difference between an array and seq in Nim?
Answer-21: array has a fixed size, while seq is dynamically resizable.
Question-22. How do you define an object in Nim?
Answer-22: type Person = object name: string age: int.
Question-23. What is a ref object in Nim?
Answer-23: A ref object is allocated on the heap and supports inheritance.
Question-24. How do you define a generic function in Nim?
Answer-24: proc add[T](a, b: T): T = return a + b.
Question-25. How do you implement exception handling in Nim?
Answer-25: Using try, except: try: echo 10 div 0 except: echo "Error".
Question-26. What is defer used for in Nim?
Answer-26: defer executes code at the end of a function?s scope.
Question-27. How do you use multiple return values in Nim?
Answer-27: Using tuples: proc values(): (int, string) = return (42, "Answer").
Question-28. What is when used for in Nim?
Answer-28: when is used for compile-time conditionals.
Question-29. How do you import a module in Nim?
Answer-29: Using import moduleName.
Question-30. How do you write a lambda function in Nim?
Answer-30: let square = (x: int) => x * x.
Question-31. How do you format a string in Nim?
Answer-31: Using &: let name = "Bob"; echo "Hello, " & name.
Question-32. How do you check the length of a sequence?
Answer-32: len(seq).
Question-33. How do you append an element to a sequence?
Answer-33: seq.add(42).
Question-34. What is Nim?s standard way to read user input?
Answer-34: var name: string; readLine(stdin, name).
Question-35. How do you measure execution time in Nim?
Answer-35: Using import times and cpuTime().
Question-36. What does discard do in Nim?
Answer-36: It ignores the return value of a function.
Question-37. How do you create a set in Nim?
Answer-37: var s = {1, 2, 3}.
Question-38. How do you check if a key exists in a table?
Answer-38: if "key" in myTable: echo myTable["key"].
Question-39. What are the benefits of Nim over Python?
Answer-39: Nim is faster, statically typed, and compiles to C for better performance.
Question-40. How do you create a coroutine in Nim?
Answer-40: Using async and await.
Question-41. How do you spawn a new thread in Nim?
Answer-41: Using spawn: spawn myFunction().
Question-42. How do you access command-line arguments?
Answer-42: import os; let args = commandLineParams().
Question-43. How do you handle JSON in Nim?
Answer-43: Using import json and parseJson("{\"key\": \"value\"}").
Question-44. What is mixins used for in Nim?
Answer-44: It allows methods to be injected into objects dynamically.
Question-45. What is inline in Nim?
Answer-45: inline suggests that the compiler should inline a function for better performance.
Question-46. How do you create an alias for a type?
Answer-46: type Age = int.
Question-47. How do you create a macro in Nim?
Answer-47: macro myMacro(): untyped = quote do: echo "Hello"
Question-48. How do you check the type of a variable?
Answer-48: typeof(x).
Question-49. How do you generate documentation in Nim?
Answer-49: Using nim doc
Question-50. How do you run a Nim script without compilation?
Answer-50: Using nim r
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