
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.