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• .. (вверх)
• [DIR] ..
• [FILE] index.js
• [FILE] is-combining-character.js
• [FILE] is-emoji-modifier.js
• [FILE] is-regional-indicator-symbol.js
• [FILE] is-surrogate-pair.js

Просмотр файла: is-surrogate-pair.js

/**
 * @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;
};

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