code-differently · IrmIris33 · Dec 1, 2020
diff --git a/ArrayUtils.js b/ArrayUtils.js
@@ -2,20 +2,84 @@ class ArrayUtils{
 
     isEmpty(array){return false;}
 
+    isEmpty(array) {
+        if (array.length == 0) {
+            return true 
+        } else {
+            return false;
+        }
+    }
+
     append(original, value){return original;}
 
+        append(original, value) {
+            original.push(value);
+            return original;
+        }
+
     clone(original){return original;}
 
+        clone(original) {
+            let newArray = [];
+            newArray = original;
+            return newArray;
+        }
+
     subArray(original, from, to){return original;}
 
+        subArray(original, from, to) {
+            let newArray = [];
+            for (let i = from; original[i] <= original[to]; i++) {
+                newArray[newArray.length] = i;
+            } 
+            return newArray;
+        }
+
     equals(arr1, arr2){return false;}
 
+        equals(arr1,arr2) {
+            for (let i = 0; i < arr1.length; i++) {
+                if (arr1[i] !== arr2[i]) return false;
+            }
+            return true;
+        }
+
     fill(original, value){}
 
+        fill(original, value) {
+            for (let i = 0; i < original.length; i++) {
+                original[i] = value;
+            } return original;
+        }
+
     indexOf(original, value){return -1;}
 
+        indexOf(original, value) {
+            for (let i = 0; i < original.length; i++) {
+                if (original[i] === value) return i;
+            }
+            return -1;
+        }
+
     remove(original, value){return original;}
 
+        remove(original, value) {
+            let newOriginal = [...original]
+            for (i = 0; i < newOriginal.length; i++){
+                if (newOriginal[i] === value) {
+                    delete newOriginal[i];
+                } 
+                return newOriginal;
+            }
+        }
+
     reverse(original){}
-
-}
+
+        reverseArray(arr) {
+            let newArray = [];
+            for (let i = arr.length - 1; i >= 0; i--) {
+            newArray.push(arr[i]);
+            }
+            return newArray;
+        }
+}
diff --git a/index.html b/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>Array Lab</title>
+</head>
+<body>
+
+    <script src="./ArrayUtils.js"></script>
+</body>
+</html>