Check if a string is a valid phone number format.
Code
Utilities/^[\+]?[(]?[0-9]{1,3}[)]?[-\s\.]?[(]?[0-9]{1,3}[)]?[-\s\.]?[0-9]{3,6}[-\s\.]?[0-9]{3,6}$/.test(phone);Parameters
Phone number to validate.
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