add snippet to compare two javascript arrays for equality

public/consolidated/javascript.json

@@ -2,6 +2,18 @@
     {
         "name": "Array Manipulation",
         "snippets": [
+            {
+                "title": "Compare Arrays",
+                "description": "Compares two arrays to check if they are equal.",
+                "author": "KCSquid",
+                "tags": [
+                    "array",
+                    "compare",
+                    "equal"
+                ],
+                "contributors": [],
+                "code": "const compareArrays = (array1, array2) => {\n  if (\n    !Array.isArray(array1) || !Array.isArray(array2) ||\n    array1.length !== array2.length\n  ) return false;\n\n  for (let i = 0; i < array1.length; i++) {\n    if (Array.isArray(array1[i]) && Array.isArray(array2[i])) {\n      if (!compareArrays(array1[i], array2[i])) return false;\n    } else if (typeof array1[i] === \"object\" && typeof array2[i] === \"object\") {\n      if (!compareObjects(array1[i], array2[i])) return false;\n    } else if (array1[i] !== array2[i]) {\n      return false;\n    }\n  }\n\n  return true;\n};\n\nconst compareObjects = (obj1, obj2) => {\n  if (typeof obj1 !== \"object\" || typeof obj2 !== \"object\") return false;\n\n  const keys1 = Object.keys(obj1);\n  const keys2 = Object.keys(obj2);\n  if (keys1.length !== keys2.length) return false;\n\n  for (let key of keys1) {\n    const val1 = obj1[key];\n    const val2 = obj2[key];\n\n    if (Array.isArray(val1) && Array.isArray(val2)) {\n      if (!compareArrays(val1, val2)) return false;\n    } else if (typeof val1 === \"object\" && typeof val2 === \"object\") {\n      if (!compareObjects(val1, val2)) return false;\n    } else if (val1 !== val2) {\n      return false;\n    }\n  }\n\n  return true;\n};\n\n// Usage:\nconst number = 123;\nconst array1 = [1, 2, 3, 4, 5];\nconst array2 = [1, 2, 3, 4, 5];\nconst array3 = [[1, 2], [3, 4]];\nconst array4 = [[1, 2], [3, 4]];\nconst array5 = [{ a: 1, b: [{ c: 2 }] }, 3];\nconst array6 = [{ a: 1, b: [{ c: 2 }] }, 3];\n\ncompareArrays(array1, array2); // Returns: true\ncompareArrays(array3, array4); // Returns: true\ncompareArrays(array5, array6); // Returns: true\ncompareArrays(array1, number); // Returns: false\ncompareArrays(array3, array6); // Returns: false\n"
+            },
             {
                 "title": "Partition Array",
                 "description": "Splits an array into two arrays based on a callback function.",
@@ -410,7 +422,7 @@
                     "algebra"
                 ],
                 "contributors": [],
-                "code": "function combinations(n, r) {\n    function factorial(x) {\n        if (x === 0 || x === 1) return 1;\n        let result = 1;\n        for (let i = 2; i <= x; i++) {\n            result *= i;\n        }\n        return result;\n    }\n    return factorial(n) / (factorial(r) * factorial(n - r));\n}\n\n// Usage:\ncombinations(12,24); // Returns:    7.720248753351544e-16\ncombinations(1,22);  // Returns:    8.896791392450574e-22\n"
+                "code": "function combinations(n, r) {\n    if (n < 0 || r < 0 || n < r) {\n        throw new Error('Invalid input: n and r must be non-negative and n must be greater than or equal to r.');\n    }\n\n    function factorial(x) {\n        if (x === 0 || x === 1) return 1;\n        let result = 1;\n        for (let i = 2; i <= x; i++) {\n            result *= i;\n        }\n        return result;\n    }\n\n    const numerator = factorial(n);\n    const denominator = factorial(r) * factorial(n - r);\n    return numerator / denominator;\n}\n\n// Usage:\ncombinations(24,22); // Returns:    276\ncombinations(5,3);   // Returns:     10\n"
             },
             {
                 "title": "Cross Product",

snippets/javascript/array-manipulation/compare-arrays.md

@@ -0,0 +1,65 @@
+---
+title: Compare Arrays
+description: Compares two arrays to check if they are equal.
+author: KCSquid
+tags: array,compare,equal
+---
+
+```js
+const compareArrays = (array1, array2) => {
+  if (
+    !Array.isArray(array1) || !Array.isArray(array2) ||
+    array1.length !== array2.length
+  ) return false;
+
+  for (let i = 0; i < array1.length; i++) {
+    if (Array.isArray(array1[i]) && Array.isArray(array2[i])) {
+      if (!compareArrays(array1[i], array2[i])) return false;
+    } else if (typeof array1[i] === "object" && typeof array2[i] === "object") {
+      if (!compareObjects(array1[i], array2[i])) return false;
+    } else if (array1[i] !== array2[i]) {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+const compareObjects = (obj1, obj2) => {
+  if (typeof obj1 !== "object" || typeof obj2 !== "object") return false;
+
+  const keys1 = Object.keys(obj1);
+  const keys2 = Object.keys(obj2);
+  if (keys1.length !== keys2.length) return false;
+
+  for (let key of keys1) {
+    const val1 = obj1[key];
+    const val2 = obj2[key];
+
+    if (Array.isArray(val1) && Array.isArray(val2)) {
+      if (!compareArrays(val1, val2)) return false;
+    } else if (typeof val1 === "object" && typeof val2 === "object") {
+      if (!compareObjects(val1, val2)) return false;
+    } else if (val1 !== val2) {
+      return false;
+    }
+  }
+
+  return true;
+};
+
+// Usage:
+const number = 123;
+const array1 = [1, 2, 3, 4, 5];
+const array2 = [1, 2, 3, 4, 5];
+const array3 = [[1, 2], [3, 4]];
+const array4 = [[1, 2], [3, 4]];
+const array5 = [{ a: 1, b: [{ c: 2 }] }, 3];
+const array6 = [{ a: 1, b: [{ c: 2 }] }, 3];
+
+compareArrays(array1, array2); // Returns: true
+compareArrays(array3, array4); // Returns: true
+compareArrays(array5, array6); // Returns: true
+compareArrays(array1, number); // Returns: false
+compareArrays(array3, array6); // Returns: false
+```