@alexlit/lint-kit
Version:
Preset of configuration files and dependencies for linting web applications (designed for Vue.js with TypeScript)
15 lines (13 loc) • 468 B
JavaScript
/**
* @author Toru Nagashima <https://github.com/mysticatea>
*/
;
/**
* 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;
};