Practice 50 JavaScript Validation without Regular expression Programming Questions

Practice 50 JavaScript Validation without Regular expression Programming Questions

Q1. Write a JavaScript program to check if a number is a positive integer.  
Input: 5  
Expected Output: true

Q2. Write a JavaScript program to check if a string is a valid email address.  
Input: "user@example.com"  
Expected Output: true

Q3. Write a JavaScript program to check if a number is an integer.  
Input: 4.5  
Expected Output: false

Q4. Write a JavaScript program to check if a string contains only alphabets.  
Input: "HelloWorld"  
Expected Output: true

Q5. Write a JavaScript program to check if a string is a valid phone number (should be 10 digits).  
Input: "1234567890"  
Expected Output: true

Q6. Write a JavaScript program to check if a number is a valid positive float.  
Input: 12.45  
Expected Output: true

Q7. Write a JavaScript program to check if a string is a valid URL.  
Input: "https://www.example.com"  
Expected Output: true

Q8. Write a JavaScript program to check if a password is valid (at least 8 characters, includes numbers and letters).  
Input: "password123"  
Expected Output: true

Q9. Write a JavaScript program to check if a given string has only numbers.  
Input: "123456"  
Expected Output: true

Q10. Write a JavaScript program to check if a string contains a valid date format (MM/DD/YYYY).  
Input: "12/31/2023"  
Expected Output: true

Q11. Write a JavaScript program to check if a string is a valid ZIP code (5 digits).  
Input: "12345"  
Expected Output: true

Q12. Write a JavaScript program to validate if a string is in a valid 24-hour time format (HH:MM).  
Input: "14:30"  
Expected Output: true

Q13. Write a JavaScript program to check if a string is a valid credit card number (16 digits).  
Input: "1234567890123456"  
Expected Output: true

Q14. Write a JavaScript program to validate if a string starts with a specific letter.  
Input: "Hello"  
Expected Output: true

Q15. Write a JavaScript program to validate if a number is even.  
Input: 4  
Expected Output: true

Q16. Write a JavaScript program to validate if a number is odd.  
Input: 5  
Expected Output: true

Q17. Write a JavaScript program to validate if a number is greater than a given number.  
Input: 6, 5  
Expected Output: true

Q18. Write a JavaScript program to check if a string is a valid time in the 12-hour format (hh:mm AM/PM).  
Input: "12:30 PM"  
Expected Output: true

Q19. Write a JavaScript program to check if a string is a valid social security number (SSN).  
Input: "123-45-6789"  
Expected Output: true

Q20. Write a JavaScript program to check if a string is a valid hex color code (starting with # followed by 6 hexadecimal characters).  
Input: "#a1b2c3"  
Expected Output: true

Q21. Write a JavaScript program to validate if a string is in uppercase.  
Input: "HELLO"  
Expected Output: true

Q22. Write a JavaScript program to check if a string is in lowercase.  
Input: "hello"  
Expected Output: true

Q23. Write a JavaScript program to check if a string contains only alphanumeric characters.  
Input: "abc123"  
Expected Output: true

Q24. Write a JavaScript program to validate if a string is a valid hexadecimal number.  
Input: "a1f3b7"  
Expected Output: true

Q25. Write a JavaScript program to check if a string matches the YYYY-MM-DD date format.  
Input: "2023-12-31"  
Expected Output: true

Q26. Write a JavaScript program to check if a string matches the DD/MM/YYYY date format.  
Input: "31/12/2023"  
Expected Output: true

Q27. Write a JavaScript program to check if a string contains only spaces.  
Input: "    "  
Expected Output: true

Q28. Write a JavaScript program to check if a string contains only digits.  
Input: "012345"  
Expected Output: true

Q29. Write a JavaScript program to check if a string is a valid IPv4 address.  
Input: "192.168.1.1"  
Expected Output: true

Q30. Write a JavaScript program to check if a string is a valid hexadecimal color code without the #.  
Input: "a1b2c3"  
Expected Output: true

Q31. Write a JavaScript program to validate if a string contains only vowels.  
Input: "aeiou"  
Expected Output: true

Q32. Write a JavaScript program to check if a string contains no vowels.  
Input: "bcdfg"  
Expected Output: true

Q33. Write a JavaScript program to check if a string is a valid date in YYYY/MM/DD format.  
Input: "2023/12/31"  
Expected Output: true

Q34. Write a JavaScript program to check if a string is a valid phone number (with or without dashes).  
Input: "123-456-7890"  
Expected Output: true

Q35. Write a JavaScript program to check if a string contains only numbers and spaces.  
Input: "123 456 789"  
Expected Output: true

Q36. Write a JavaScript program to check if a string contains only letters and numbers.  
Input: "abc123XYZ"  
Expected Output: true

Q37. Write a JavaScript program to check if a number is a prime number.  
Input: 7  
Expected Output: true

Q38. Write a JavaScript program to validate if a string is a valid binary number.  
Input: "110101"  
Expected Output: true

Q39. Write a JavaScript program to check if a number is divisible by 3.  
Input: 9  
Expected Output: true

Q40. Write a JavaScript program to validate if a string is a valid floating-point number.  
Input: "12.34"  
Expected Output: true

Q41. Write a JavaScript program to check if a number is within a given range (inclusive).  
Input: 10, 5, 15  
Expected Output: true

Q42. Write a JavaScript program to check if a number is greater than zero.  
Input: 5  
Expected Output: true

Q43. Write a JavaScript program to validate if a string is a valid time in the HH:MM:SS format.  
Input: "14:30:45"  
Expected Output: true

Q44. Write a JavaScript program to check if a string is a valid file extension (.txt, .jpg, etc.).  
Input: "image.jpg"  
Expected Output: true

Q45. Write a JavaScript program to check if a string is a valid domain name.  
Input: "example.com"  
Expected Output: true

Q46. Write a JavaScript program to validate a year (greater than or equal to 1900).  
Input: "2023"  
Expected Output: true

Q47. Write a JavaScript program to check if a number is a perfect square.  
Input: 16  
Expected Output: true

Q48. Write a JavaScript program to check if a string contains only punctuation characters.  
Input: ".!?"  
Expected Output: true

Q49. Write a JavaScript program to check if a string is a valid month name (e.g., "January").  
Input: "March"  
Expected Output: true

Q50. Write a JavaScript program to validate a string to check if it matches a proper file path format.  
Input: "C:\\Users\\John\\Documents\\file.txt"  
Expected Output: true