joel martinez, ricard bargallo

starter-code/index.js

@@ -1,11 +1,62 @@
 class SortedList {
+    constructor(){
+        this.items = [];
+        this.length = 0;
+    }
+        add(x) {
+            this.items.push(x);
+            this.length++;
+            this.items.sort(function(a, b){return a - b});
 
-    add(item) {}
-    get(pos) {}
-    max() {}
-    min() {}
-    average() {}
-    sum() {}
-}
+        }
+        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 Math.max(...this.items);
+        }
+
+        min() {
+            if(this.length == 0){
+                const error = new TypeError('EmptyList Error');
+                throw error;
+            }
+            return Math.min(...this.items);
+        }
+        average() {
+            if(this.length == 0){
+                const error = new TypeError('EmptyList Error');
+                throw error;
+            }
+
+            let suma = 0;
+            let promedio;
+            this.items.forEach(e => {
+                suma = suma + e;
+            });
+            promedio = suma / this.items.length;
+            return promedio;
+        }
+        sum() {
+            if(this.length == 0){
+                const error = new TypeError('EmptyList Error');
+                throw error;
+            }
+            let suma = 0;
+            this.items.forEach(e => {
+                suma = suma + e;
+            });
+            return suma;
+        }
+    }
 
 export default SortedList;