Regular expression for validating a number No email needed grannys looking to hookup chatrooms free chat no login just talk
provide the foundation for describing or matching data according to defined syntax rules.
A regular expression is nothing more than a pattern of characters itself, matched against a certain parcel of text.
Regular expressions are more powerful and flexible. You can search Numbers, punctuation characters, patterns and so on.
At the same time, Regular expression can be very confusing and tricky.
The learning curve for Regular expression may not be very easy for everyone.
Often this results in to underutilization of Regular Expression and true power is not harnessed.
The mapping sample given here exemplifies the power of Regular Expressions by validating US Phone numbers from multiple form of anomalies.