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eslint

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An AST-based pattern checker for JavaScript.

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/** * @author Toru Nagashima <https://github.com/mysticatea> */ "use strict"; /** * Check whether a given character is a combining mark or not. * @param {number} codePoint The character code to check. * @returns {boolean} `true` if the character belongs to the category, any of `Mc`, `Me`, and `Mn`. */ module.exports = function isCombiningCharacter(codePoint) { return /^[\p{Mc}\p{Me}\p{Mn}]$/u.test(String.fromCodePoint(codePoint)); };