Practice 50 JavaScript Error Handling Programming Questions, TechnoVlogs

Practice 50 JavaScript Error Handling Programming Questions


Q1. Write a JavaScript program to handle an error using a `try...catch` block.  

Q2. Write a JavaScript program to check for division by zero using `try...catch`.  

Q3. Write a JavaScript program to catch an error when accessing an undefined variable.

Q4. Write a JavaScript program to demonstrate the execution of a `finally` block.

Q5. Write a JavaScript program to throw a custom error message.

Q6. Write a JavaScript program to catch a `TypeError` when calling a non-function.

Q7. Write a JavaScript program to validate user input and throw an error if it is invalid.

Q8. Write a JavaScript program to handle `JSON.parse` errors.

Q9. Write a JavaScript program to re-throw an error after logging it.

Q10. Write a JavaScript program to create a custom error class.

Q11. Write a JavaScript program to catch an error in a function.  

Q12. Write a JavaScript program to handle an array out-of-bound error.  

Q13. Write a JavaScript program to handle invalid JSON format.  

Q14. Write a JavaScript program to handle `null` object property access.  

Q15. Write a JavaScript program to handle invalid function arguments.  

Q16. Write a JavaScript program to use `try...catch` in asynchronous code.  

Q17. Write a JavaScript program to handle promise rejections with `catch`.  

Q18. Write a JavaScript program to validate array index access.  

Q19. Write a JavaScript program to handle invalid date objects.  

Q20. Write a JavaScript program to log the error stack trace.  

Q21. Write a JavaScript program to handle object property errors.  

Q22. Write a JavaScript program to handle invalid function calls.  

Q23. Write a JavaScript program to catch and display a `SyntaxError`.  

Q24. Write a JavaScript program to handle an invalid `setTimeout` callback function.  

Q25. Write a JavaScript program to handle an error in a loop.  

Q26. Write a JavaScript program to validate input and throw an error if invalid.  

Q27. Write a JavaScript program to catch and display `RangeError`.  

Q28. Write a JavaScript program to handle and log an error in a file reading operation (simulation).  

Q29. Write a JavaScript program to throw an error with a custom error code.  

Q30. Write a JavaScript program to handle and log `ReferenceError`.  

Q31. Write a JavaScript program to handle an invalid method call on a primitive value.  

Q32. Write a JavaScript program to handle invalid array length.  

Q33. Write a JavaScript program to handle promise rejection error and log it.  

Q34. Write a JavaScript program to handle error in a regular expression.  

Q35. Write a JavaScript program to catch and handle a `URIError`.  

Q36. Write a JavaScript program to handle and log error from invalid function arguments.  

Q37. Write a JavaScript program to handle an error when trying to modify a `const` variable.  

Q38. Write a JavaScript program to handle invalid function parameters inside a loop.  

Q39. Write a JavaScript program to handle an error in async function using `try...catch`.  

Q40. Write a JavaScript program to handle and display errors thrown by the `setInterval` function.  

Q41. Write a JavaScript program to handle and display a `SyntaxError` for an invalid function declaration.  

Q42. Write a JavaScript program to catch errors in an asynchronous loop.  

Q43. Write a JavaScript program to demonstrate error handling inside a `forEach` loop.  

Q44. Write a JavaScript program to handle invalid arguments in `setTimeout`.  

Q45. Write a JavaScript program to handle and display a `TypeError` when trying to call a non-function.  

Q46. Write a JavaScript program to handle and display `Error` for invalid object method.  

Q47. Write a JavaScript program to catch errors with multiple `catch` blocks.  

Q48. Write a JavaScript program to catch and handle an error inside a `try...catch` block.  

Q49. Write a JavaScript program to handle errors thrown from an external function.  

Q50. Write a JavaScript program to handle errors from a `Promise` rejection.  

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