code added

Author: Bharat2044

03_toBeOrNotToBe.js

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+// Question Link: https://leetcode.com/problems/to-be-or-not-to-be/description/?envType=study-plan-v2&envId=30-days-of-javascript
+// Solution Link: https://leetcode.com/problems/to-be-or-not-to-be/solutions/5424106/esay-javascript-solution-time-space-complexity-o-1/
+
+
+/*
+2704. To Be Or Not To Be
+
+Write a function expect that helps developers test their code. It should take in any value val and return an object with the following two functions.
+toBe(val) accepts another value and returns true if the two values === each other. If they are not equal, it should throw an error "Not Equal".
+notToBe(val) accepts another value and returns true if the two values !== each other. If they are equal, it should throw an error "Equal".
+
+Example 1:
+Input: func = () => expect(5).toBe(5)
+Output: {"value": true}
+Explanation: 5 === 5 so this expression returns true.
+Example 2:
+Input: func = () => expect(5).toBe(null)
+Output: {"error": "Not Equal"}
+Explanation: 5 !== null so this expression throw the error "Not Equal".
+Example 3:
+Input: func = () => expect(5).notToBe(null)
+Output: {"value": true}
+Explanation: 5 !== null so this expression returns true.
+*/
+
+
+
+/**
+ * @param {string} val
+ * @return {Object}
+ */
+var expect = function(val) {
+    return {
+        toBe: (value) => {
+            if (value === val) {
+                return true;
+            } else {
+                throw "Not Equal";
+            }
+        },
+        notToBe: (value) => {
+            if (value !== val) {
+                return true;
+            } else {
+                throw "Equal";
+            }
+        }
+    }
+};
+
+/**
+ * expect(5).toBe(5); // true
+ * expect(5).notToBe(5); // throws "Equal"
+ */