code-differently · KalynS · Dec 1, 2020
diff --git a/ArrayUtils.js b/ArrayUtils.js
@@ -1,21 +1,95 @@
-class ArrayUtils{
 
-    isEmpty(array){return false;}
+class ArrayUtils{  
+
+    // part1
+ isEmpty(array){
+    if (array.length == 0){
+        return true} 
+       else { 
+           return false}              
+  }
 
-    append(original, value){return original;}
+    //  part2
+ append(original, value){
+     original.push(value);
+     return original;
+    }
 
-    clone(original){return original;}
+    // part3
+  clone(original){
+    let clone = original
+    return clone;}
 
-    subArray(original, from, to){return original;}
+    // part4
+    subArray(original, from, to) {
+    let newArr = []
+    for (let i = from; original[i] <= original[to]; i++){
+        newArr[newArr.length] = original[i]
+    }
+    return newArr
+    }
 
-    equals(arr1, arr2){return false;}
+    // part5
+  equals(arr1, arr2) {
+    for (let i = 0; i < arr1.length; i++) {
+      if (arr1[i] !== arr2[i])
+        return false;
+    }
+    return true;
+  }
+
+    // part6
+    fill(original, value){
+        for ( let i=0; i < original.length; i++ ){
+            original[i] = value;
+        }
+         return original;
+    }
 
-    fill(original, value){}
+    // part7
+    indexOf(original, value) {
+        for (let i = 0; i < original.length; i++){
+           if(original[i] === value) {
+              return i
+              break
+            }
+        }
+        return -1;
+    }
 
-    indexOf(original, value){return -1;}
+    // part8
+    remove(original, value){
+        let newOriginal = [...original]
+        for (let i = 0; i < newOriginal.length; i++) {
+            if (newOriginal[i] === value) {
+                delete newOriginal[i]
+                return newOriginal
+                break
+            }
+        }
+    }
 
-    remove(original, value){return original;}
+     // part9
+    reverse(original){
+       let rev = [];
+       for (let i = original.length - 1; i >= 0; i-- ){
+           rev += original[i];
+       }
+       return rev
+    }  
+}
+
 
-    reverse(original){}
-
-}
+const arrayUtils = new ArrayUtils();
+
+let testOriginal = [1,4,5,6,7,15,20]
+
+// arrayUtils.isEmpty(testArray)
+// arrayUtils.append(testOriginal,testValue)
+// arrayUtils.clone(testOriginal)
+// arrayUtils.subArray(testOriginal, testFrom,testTo)
+// arrayUtils.equals(testArr1, testArr2)
+// arrayUtils.fill(testOriginal,testValue)
+// arrayUtils.indexOf(testOriginal,testValue)
+// arrayUtils.remove(testOriginal,testValue)
+// arrayUtils.reverse(testOriginal)
diff --git a/index.html b/index.html
@@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+
+</head>
+<body>
+    <script src="ArrayUtils.js"></script>
+</body>
+</html>