add hw2

node_modules/chromium-bidi/lib/cjs/utils/DistinctValues.js

@@ -0,0 +1,58 @@
+"use strict";
+/*
+ * Copyright 2024 Google LLC.
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.distinctValues = distinctValues;
+exports.deterministicJSONStringify = deterministicJSONStringify;
+/**
+ * Returns an array of distinct values. Order is not guaranteed.
+ * @param values - The values to filter. Should be JSON-serializable.
+ * @return - An array of distinct values.
+ */
+function distinctValues(values) {
+    const map = new Map();
+    for (const value of values) {
+        map.set(deterministicJSONStringify(value), value);
+    }
+    return Array.from(map.values());
+}
+/**
+ * Returns a stringified version of the object with keys sorted. This is required to
+ * ensure that the stringified version of an object is deterministic independent of the
+ * order of keys.
+ * @param obj
+ * @return {string}
+ */
+function deterministicJSONStringify(obj) {
+    return JSON.stringify(normalizeObject(obj));
+}
+function normalizeObject(obj) {
+    if (obj === undefined ||
+        obj === null ||
+        Array.isArray(obj) ||
+        typeof obj !== 'object') {
+        return obj;
+    }
+    // Copy the original object key and values to a new object in sorted order.
+    const newObj = {};
+    for (const key of Object.keys(obj).sort()) {
+        const value = obj[key];
+        newObj[key] = normalizeObject(value); // Recursively sort nested objects
+    }
+    return newObj;
+}
+//# sourceMappingURL=DistinctValues.js.map