allowedcharacters v1.0.2

allowed-characters

Throw an error if a string contains unallowed characters

Installation

npm i --save allowedcharacters

Usage

allowedCharacters -> allowed -> string -> string|error

1. Correct characters

allowedCharacters('123', '123') === '123';

2. Incorrect characters

allowedCharacters('123', '1234')
// throws error: 'contained unallowed character "4"'