LeetCode problem solved on Dec 25th

1150.check-if-a-number-is-majority-element-in-a-sorted-array.js

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+/* URL of this problem
+ * https://leetcode.com/problems/check-if-a-number-is-majority-element-in-a-sorted-array/description/
+ *
+ * @param {number[]} nums
+ * @param {number} target
+ * @return {boolean}
+ */
+
+var isMajorityElement = function(nums, target) {
+    const Targets = nums.filter(num => num === target);
+
+    // True if target appears more than a half of the length of nums or false if not
+    return nums.length / 2 < Targets.length;
+};
+
+module.exports = isMajorityElement;

isMajorityElement.test.js

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+const isMajorityElement = require("./1150.check-if-a-number-is-majority-element-in-a-sorted-array");
+
+test("Return true if target is a major element in nums", () => {
+    expect(isMajorityElement([2,4,5,5,5,5,5,6,6], 5)).toBeTruthy();
+});
+
+test("Return false if target is not a major element inn nums", () => {
+    expect(isMajorityElement([10,100,101,101], 101)).toBeFalsy();
+});
+
+test("Return false if nums is an empty array", () => {
+    expect(isMajorityElement([], 5)).toBeFalsy();
+});