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JavaScript DHTML Home » Form Control » [ Validation ]

Validate an input field with minimum and maximum values

Please note that some example is only working under IE or Firefox.

<html> <head> <script type="text/javascript"> function validate(){ x=document.myForm txt=x.myInput.value if (txt>=1 && txt<=5) { return true }else{ alert("Must be between 1 and 5") return false } } </script> </head> <body> <form name="myForm" action="http://www.java2s.com" onsubmit="return validate()"> Enter a value from 1 to 5: <input type="text" name="myInput" size="20"> <input type="submit" value="Submit"> </form> </body> </html>

Related examples in the same category

1. Form validation: Not Empty, Valid Radio, is Number, string length, EMail Address

2. Validate an field with a maximum number of characters

3. Phone Number Validation

4. Creating Reusable Validation Code

5. Credit Card Validation

6. Money Format

7. Validating User Input

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10. TextField input length validator

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12. TextField validator: email, IP address and URL

13. Must be at least 3 characters and not more than 8

14. Only characters are allowed

15. Can be empty

16. Must be a valid email address

17. ComboBox(list box): Must be selected one

18. InputBox: value must be between 10 and 90

19. Not stop when the first failed validation is encountered

20. A CSS is used to highlight the fields which failed to validate

21. Need to select a file

22. A simple form with two passwords that must have the same value

23. Shows the usage of callback functions for checking a field

24. Javascript validation framework

25. Form validator library

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1. Form validation: Not Empty, Valid Radio, is Number, string length, EMail Address
2. Validate an field with a maximum number of characters
3. Phone Number Validation
4. Creating Reusable Validation Code
5. Credit Card Validation
6. Money Format
7. Validating User Input
8. Validate email address
9. Validate a number
10. TextField input length validator
11. Password field validator
12. TextField validator: email, IP address and URL
13. Must be at least 3 characters and not more than 8
14. Only characters are allowed
15. Can be empty
16. Must be a valid email address
17. ComboBox(list box): Must be selected one
18. InputBox: value must be between 10 and 90
19. Not stop when the first failed validation is encountered
20. A CSS is used to highlight the fields which failed to validate
21. Need to select a file
22. A simple form with two passwords that must have the same value
23. Shows the usage of callback functions for checking a field
24. Javascript validation framework
25. Form validator library