is-jeju-or-is-island-and-mountain v1.0.8

is-jeju-or-is-island-and-mountain

국내 우편번호 -> 제주도 및 도서산간 식별기.\ Identifier which confirms whether a Korean zip code is on the Jeju province, or island + mountain regions.

Installing

Using npm:\ $ npm install is-jeju-or-is-island-and-mountain

Using yarn:\ $ yarn add is-jeju-or-is-island-and-mountain

Methods

isJeju(zipcode): takes in zip code string as input and returns boolean value\ \ isMountain(zipcode): takes in zip code string as input and returns boolean value