Add more utlity functions for validating stings.

[Jagroop2001]

Add more utlity functions for validating stings : I will change the tag accordingly depending upon the number of utility functions added to validate sting.

[singhcodes26]

You can assign me this issue under JWOC

[ayesha-2101]

@Jagroop2001 I am willing to do this under JWOC. Please assign this to me

[Jagroop2001]

You both @singhcodes26 and @ayesha-2101 , can work on this issue. Create a separate issue with the explanation regarding which utility function you are going to add. If it's not existed I will assign that issue to you.

[vipul-dixit-2004]

we can add, 1.) Is valid phone number: (checks for valid mobile number entered, i.e. 10 numeric characters only) 2.)Date format Validator: (Verify if a string represents a valid date in a specific format.) 3.)Credit Card Number Validator(Using Luhn's algorithm) I have these in mind for the time being but will add more later. Really excited to work on this project. @Jagroop2001 kindly assign this to me.

[Jagroop2001]

@vipul-dixit-2004 !! Please create a new Issue for this.

[vermaanurag1532]

please assign it to me i have worked on node js i can resolve it for you

[Jagroop2001]

@vermaanurag1532 , create a new issue with the utility functions name.