Muna_Naher

task-1/count-above-threshold.js

@@ -1 +1,17 @@
 //Your code here
+function countAboveThreshold(numbers, threshold) {
+let count=0; 
+
+
+    for (let i=0; i< numbers.length; i++){
+     if(numbers[i]> threshold ){
+        count++;
+     }
+    }
+
+    return count;
+}
+
+console.log(countAboveThreshold([1,5,10,3],4))// returns 2
+console.log(countAboveThreshold([],5));// returns 0
+console.log(countAboveThreshold([7,8,9],10) );// returns 0

task-2/calculateAverage.js

@@ -18,3 +18,6 @@ export function calculateAverage(numbers) {
 
   return sum / numbers.length;
 }
+
+
+

task-2/calculateAverage.test.js

@@ -0,0 +1,31 @@
+import { describe, it, expect } from "vitest";
+import { calculateAverage } from "./calculateAverage"; 
+
+describe("calculateAverage", () => {
+
+  it("returns the average for an array of numbers", () => {
+    const result = calculateAverage([2, 4, 6]);
+    expect(result).toBe(4);
+  });
+
+  it("returns the number when array has one element", () => {
+    const result = calculateAverage([5]);
+    expect(result).toBe(5);
+  });
+
+  it("returns null for an empty array", () => {
+    const result = calculateAverage([]);
+    expect(result).toBeNull();
+  });
+
+  it("returns null when input is not an array", () => {
+    expect(calculateAverage("123")).toBeNull();
+    expect(calculateAverage(null)).toBeNull();
+    expect(calculateAverage(10)).toBeNull();
+  });
+  it("returns null when array contains non-number values", () => {
+    const result = calculateAverage([1, 2, "3"]);
+    expect(result).toBeNull();
+  });
+
+});