Regular Expresions

You want 
1) Only a number 
2) The number must be positive
3) The number must not be zero

Note :- Also you can not put zero to front of any positive number too.
Ex :- 8 is OK but 08 is an error.

Then below is the regular expression ..

^[+]?[1-9]\d*\.?[0]*$

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You want,

accepted scale 99999.99999 :-

Then below the regular expression

^\d{1,5}(\.\d{1,5})?$
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You want,

accepted year. (Four number digits only)

Then below the regular expression

^\d{4,4}(\.\d{0,0})?$
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Enter a valid telephone number

^(0[0-9]{9})|(\+[0-9]{11,14})$ 

Enter a positive number , no points ..

^\d+$

Comments

  1. Also You want to validate a correct email address.
    Then use below one.

    ^([0-9a-zA-Z]([-.\w]*[0-9a-zA-Z])*@([0-9a-zA-Z][-\w]*[0-9a-zA-Z]\.)+[a-zA-Z]{2,9})$

    ReplyDelete
  2. Also You want to validate a correct precentage with "%" sign
    Then use below one.

    (?!^0*$)(?!^0*\.0*$)^\d{1,2}(\.\d{1,2})?$

    ReplyDelete

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