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node-course/node_modules/eslint/lib/rules/utils/unicode/index.js

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+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+const isCombiningCharacter = require("./is-combining-character");
+const isEmojiModifier = require("./is-emoji-modifier");
+const isRegionalIndicatorSymbol = require("./is-regional-indicator-symbol");
+const isSurrogatePair = require("./is-surrogate-pair");
+
+module.exports = {
+	isCombiningCharacter,
+	isEmojiModifier,
+	isRegionalIndicatorSymbol,
+	isSurrogatePair,
+};

node-course/node_modules/eslint/lib/rules/utils/unicode/is-combining-character.js

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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 has the General Category of Combining Mark (M), consisting of `Mc`, `Me`, and `Mn`.
+ */
+module.exports = function isCombiningCharacter(codePoint) {
+	return /^\p{M}$/u.test(String.fromCodePoint(codePoint));
+};

node-course/node_modules/eslint/lib/rules/utils/unicode/is-emoji-modifier.js

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+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+/**
+ * Check whether a given character is an emoji modifier.
+ * @param {number} code The character code to check.
+ * @returns {boolean} `true` if the character is an emoji modifier.
+ */
+module.exports = function isEmojiModifier(code) {
+	return code >= 0x1f3fb && code <= 0x1f3ff;
+};

node-course/node_modules/eslint/lib/rules/utils/unicode/is-regional-indicator-symbol.js

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+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ */
+"use strict";
+
+/**
+ * Check whether a given character is a regional indicator symbol.
+ * @param {number} code The character code to check.
+ * @returns {boolean} `true` if the character is a regional indicator symbol.
+ */
+module.exports = function isRegionalIndicatorSymbol(code) {
+	return code >= 0x1f1e6 && code <= 0x1f1ff;
+};

node-course/node_modules/eslint/lib/rules/utils/unicode/is-surrogate-pair.js

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+/**
+ * @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;
+};