[Feat] : Added perfect square (#37)

Author: Rajat379

Maths/PerfectSquare.ts

@@ -0,0 +1,11 @@
+/**
+ * @function perfectSquare
+ * @description the square root of a number should be an integer
+ * @see [Perfect square](https://www.cuemath.com/algebra/perfect-squares/)
+ * @example Perfect square - 9, 16, 25
+ * @param {num} number
+ */
+
+export const PerfectSquare = (num: number) => {
+  return Number.isInteger(Math.sqrt(num));
+};

Maths/test/PerfectSquare.test.ts

@@ -0,0 +1,9 @@
+import { PerfectSquare } from "../PerfectSquare";
+
+test("Check perfect square", () => {
+    expect(PerfectSquare(16)).toBe(true);
+    expect(PerfectSquare(12)).toBe(false);
+    expect(PerfectSquare(19)).toBe(false);
+    expect(PerfectSquare(25)).toBe(true);
+    expect(PerfectSquare(42)).toBe(false);
+});