Regular Expressions 101

Allows phone numbers with optional country code, optional special characters and whitespace

RegEx email /^((?!\.)[\w-_.]*)(@\w+)(\.\w+(\.\w+)?)$/gim; Just playing with Reg Ex. This to validate emails in following ways ...

The secret of the Twitterverse.

Safe Password that allow only with a number, a lowercase, a uppercase, and a special character

general purpose HTTP URL regex

Matches text within quotes (", ') and escapes the charecters.

Email address, most used cases

This regex matches only when all the following are true: password must contain 1 number (0-9) password must contain 1 uppercase letters password must contain 1 lowercase letters password must contain 1 non-alpha numeric number...

Attempts to mimic Google search box behavior, returning an array with the separated search strings (that keep the +/- indicator for following operations)

Validates IPv4 IP Address

Checks that a password has a minimum of 6 characters, at least 1 uppercase letter, 1 lowercase letter, and 1 number with no spaces.

Trim leading and trailing whitespace from a string.