Ricard & Robert

starter-code/index.js

@@ -1,11 +1,58 @@
 class SortedList {
+    constructor() {
+        this.items = [];
+        this.length = 0;
+    }
 
-    add(item) {}
-    get(pos) {}
-    max() {}
-    min() {}
-    average() {}
-    sum() {}
+    add(item) {
+        this.items.push(item);
+        this.length = this.items.length;
+
+        this.items.sort(function (a, b) {
+            return a - b;
+        });
+    }
+
+    get(pos) {
+        if (pos > this.length) {
+            const error = new TypeError('OutOfBounds Error');
+            throw error;
+        }
+        return this.items[pos - 1];
+    }
+    max() {
+        if (this.length == 0) {
+            const error = new TypeError('EmptyList Error');
+            throw error;
+        }
+        return this.items[this.length - 1];
+
+    }
+    min() {
+        if (this.length == 0) {
+            const error = new TypeError('EmptyList Error');
+            throw error;
+        }
+        return this.items[0];
+    }
+    average() {
+        if (this.length == 0) {
+            const error = new TypeError('EmptyList Error');
+            throw error;
+        }
+        // const sum = this.items.reduce((a, b) => a + b, 0);
+        const avg = (this.sum() / this.items.length) || 0;
+        return avg;
+    }
+    sum() { 
+        if (this.length == 0) {
+            const error = new TypeError('EmptyList Error');
+            throw error;
+        }
+        const sum = this.items.reduce((a, b) => a + b, 0);
+        return sum;
+    }
 }
 
+
 export default SortedList;