/**
|
* @author Toru Nagashima <https://github.com/mysticatea>
|
*/
|
"use strict";
|
|
/**
|
* Check whether given two characters are a surrogate pair.
|
* @param {number} lead The code of the lead character.
|
* @param {number} tail The code of the tail character.
|
* @returns {boolean} `true` if the character pair is a surrogate pair.
|
*/
|
module.exports = function isSurrogatePair(lead, tail) {
|
return lead >= 0xD800 && lead < 0xDC00 && tail >= 0xDC00 && tail < 0xE000;
|
};
|
