merge: Add pronic number implementation (#1023)

* feat: Add pronic number implementation

* Add test to Math

* Minor fixes

* Minor style fixes

* refactor: Store square root in a variable

* Minor refactoring

* fix: Change pronic number check logic

Reduced time complexity from O(sqrt(n)) to O(1)

* Minor style fixes

* fix: Update pronic number check boolean equation

* refactor: Change pronic number check condition

* refactor: Add tests to Math

* Minor style fixes

* refactor: Change unit test logic

Maths/IsPronic.js

@@ -0,0 +1,27 @@
+/*
+ * Author: Akshay Dubey (https://github.com/itsAkshayDubey)
+ * Pronic Number: https://en.wikipedia.org/wiki/Pronic_number
+ * function to check if number is pronic.
+ * return true if number is pronic.
+ * else false
+ */
+
+/**
+ * @function isPronic
+ * @description -> Checking if number is pronic using product of two consecutive numbers
+ * If number is a product of two consecutive numbers, then it is pronic
+ * therefore, the function will return true
+ *
+ * If number is not a product of two consecutive numbers, then it is not pronic
+ * therefore, the function will return false
+ * @param {number} number
+ * @returns {boolean}
+ */
+
+export const isPronic = (number) => {
+  if (number === 0) {
+    return true
+  }
+  const sqrt = Math.sqrt(number)
+  return sqrt % 1 !== 0 && Math.ceil(sqrt) * Math.floor(sqrt) === number
+}