done

index.js

@@ -1,17 +1,45 @@
 class SortedList {
-  constructor() {}
+  constructor(items, length) {
+    this.items = [];
+    this.length = this.items.length;
+  }
 
-  add(item) {}
+  add(item) {
+    this.items.push(item);
+    this.items.sort((a, b) => a - b);
+    this.length = this.items.length;
+  }
 
-  get(pos) {}
+  get(pos) {
+    if (pos >= this.length) throw new Error("OutOfBounds");
+    return this.items[pos];
+  }
 
-  max() {}
+  max() {
+    if (!this.length) throw new Error("EmptySortedList");
+    let max = Math.max(...this.items);
+    return max;
+  }
 
-  min() {}
+  min() {
+    if (!this.length) throw new Error("Empty SortedList");
+    let min = Math.min(...this.items);
+    return min;
+  }
 
-  sum() {}
+  sum() {
+    if (!this.length) return 0;
+    let sum = this.items.reduce((acc, currentItem) => acc + currentItem);
+    return sum;
+  }
 
-  avg() {}
+  avg() {
+    if (!this.length) throw new Error("EmptySortedList");
+    let avg = this.sum() / this.length;
+    return avg;
+  }
 }
 
 module.exports = SortedList;
+
+

package.json

@@ -19,5 +19,8 @@
     "intro"
   ],
   "author": "[email protected]",
-  "license": "MIT"
+  "license": "MIT",
+  "dependencies": {
+    "mocha": "^11.1.0"
+  }
 }