HTML5 phone number validation with pattern

Question

I m using HTML5 form validation to validate phone numbers from India   Phone numbers from India are 10 digits long  and start with 7  8  or 9   For example    7878787878 9898989898 8678678878   These phone numbers are valid  but    1212121212 3434545464 6545432322   are invalid   Suggest a pattern that can detect valid India phone numbers   So far  my pattern is  0-9  10   but it doesn t check if the first digit is 7  8  or 9

User · Answer

789  d 9 9    Minimum digits 10 Maximum digits 10 number starts with 7 8 9

User · Answer

How about    lt input type  text  pattern   789  0-9  9   gt

User · Answer

This code will accept all country code with   sign   lt input type  text  pattern   0-9  5  -  0-9  7  -  0-9  1    gt    Some countries allow a single  0  character instead of     and others a double  0  character instead of the      Neither are standard

User · Answer

How about this    7 8 9  d 9    It starts by either looking for 7 or 8 or 9  and then followed by 9 digits

User · Answer

Try this code    lt input type  text  name  Phone Number  pattern   7-9  1  0-9  9           title  Phone number with 7-9 and remaing 9 digit with 0-9  gt    This code will inputs only in the following format   9238726384  starting with 9 or 8 or 7 and other 9 digit using any number   8237373746  7383673874  Incorrect format   2937389471 starting not with 9 or 8 or 7   32796432796 more than 10 digit   921543 less than 10 digit

User · Answer

The regex validation for india should make sure that  91 is used  then make sure that 7  8 9  is used after  91 and finally followed by 9 digits      91 7 d 8 d 9 d  d 9     Your original regex doesn t require a     at the front though   Get the more information from below link  w3schools com jsref jsref obj regexp asp

[html] HTML5 phone number validation with pattern

^[789]\d{9,9}$

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