save code

frontend/node_modules/is-bigint/.eslintrc

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+{
+	"root": true,
+
+	"extends": "@ljharb",
+}

frontend/node_modules/is-bigint/.nycrc

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+{
+	"all": true,
+	"check-coverage": false,
+	"reporter": ["text-summary", "text", "html", "json"],
+	"exclude": [
+		"coverage",
+		"test"
+	]
+}

frontend/node_modules/is-bigint/LICENSE

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+MIT License
+
+Copyright (c) 2018 Jordan Harband
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

frontend/node_modules/is-bigint/index.js

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+'use strict';
+
+var hasBigInts = require('has-bigints')();
+
+if (hasBigInts) {
+	var bigIntValueOf = BigInt.prototype.valueOf;
+	/** @type {(value: object) => value is BigInt} */
+	var tryBigInt = function tryBigIntObject(value) {
+		try {
+			bigIntValueOf.call(value);
+			return true;
+		} catch (e) {
+		}
+		return false;
+	};
+
+	/** @type {import('.')} */
+	module.exports = function isBigInt(value) {
+		if (
+			value === null
+			|| typeof value === 'undefined'
+			|| typeof value === 'boolean'
+			|| typeof value === 'string'
+			|| typeof value === 'number'
+			|| typeof value === 'symbol'
+			|| typeof value === 'function'
+		) {
+			return false;
+		}
+		if (typeof value === 'bigint') {
+			return true;
+		}
+
+		return tryBigInt(value);
+	};
+} else {
+	/** @type {import('.')} */
+	module.exports = function isBigInt(value) {
+		return false && value;
+	};
+}

frontend/node_modules/is-bigint/test/index.js

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+'use strict';
+
+var test = require('tape');
+var inspect = require('object-inspect');
+var hasBigInts = require('has-bigints')();
+var hasToStringTag = require('has-tostringtag/shams')();
+var forEach = require('for-each');
+var v = require('es-value-fixtures');
+
+var isBigInt = require('../');
+
+test('non-BigInt values', function (t) {
+	/** @type {(typeof v.primitives[number] | object)[]} */
+	var nonBigInts = v.nonBigInts.concat(
+		Object(true),
+		Object(false),
+		// @ts-expect-error TS sucks with concat
+		{},
+		[],
+		/a/g,
+		new Date(),
+		function () {},
+		NaN,
+		v.symbols
+	);
+	t.plan(nonBigInts.length);
+	forEach(nonBigInts, function (nonBigInt) {
+		t.equal(false, isBigInt(nonBigInt), inspect(nonBigInt) + ' is not a BigInt');
+	});
+	t.end();
+});
+
+test('faked BigInt values', function (t) {
+	t.test('real BigInt valueOf', { skip: !hasBigInts }, function (st) {
+		var fakeBigInt = { valueOf: function () { return BigInt(42); } };
+		st.equal(false, isBigInt(fakeBigInt), 'object with valueOf returning a BigInt is not a BigInt');
+		st.end();
+	});
+
+	t.test('faked @@toStringTag', { skip: !hasBigInts || !hasToStringTag }, function (st) {
+		/** @type {{ valueOf(): unknown; [Symbol.toStringTag]?: unknown }} */
+		var fakeBigInt = { valueOf: function () { return BigInt(42); } };
+		fakeBigInt[Symbol.toStringTag] = 'BigInt';
+		st.equal(false, isBigInt(fakeBigInt), 'object with fake BigInt @@toStringTag and valueOf returning a BigInt is not a BigInt');
+
+		/** @type {{ valueOf(): unknown; [Symbol.toStringTag]?: unknown }} */
+		var notSoFakeBigInt = { valueOf: function () { return 42; } };
+		notSoFakeBigInt[Symbol.toStringTag] = 'BigInt';
+		st.equal(false, isBigInt(notSoFakeBigInt), 'object with fake BigInt @@toStringTag and valueOf not returning a BigInt is not a BigInt');
+		st.end();
+	});
+
+	var fakeBigIntString = { toString: function () { return '42n'; } };
+	t.equal(false, isBigInt(fakeBigIntString), 'object with toString returning 42n is not a BigInt');
+
+	t.end();
+});
+
+test('BigInt support', { skip: !hasBigInts }, function (t) {
+	forEach(v.bigints.concat(Object(BigInt(42))), function (bigInt) {
+		t.equal(true, isBigInt(bigInt), inspect(bigInt) + ' is a BigInt');
+	});
+
+	t.end();
+});