We are required to write a JavaScript function that takes in an array of Numbers.The function should return the middlemost element of the array.For example −If the array is −const arr = [1, 2, 3, 4, 5, 6, 7];Then the output should be 4ExampleFollowing is the code −const arr = ... Read More

We are required to write a JavaScript function that takes in an array of literals and returns a new array that have elements of the original array chunked into subarrays of length exactly 2.Now if the length of original array is not exactly divisible by 2, then the last subarray ... Read More

Suppose, we have two objects, say A and B like these −const A = { activity: 'purchased', count: undefined, time: '09:05:33' }; const B = { activity: 'purchased', count: '51', time: undefined }; We are required to write a JavaScript function that merges these two objects, keeping in mind if any ... Read More

Suppose, we have an array of objects like this −const arr = [    {flag: true, other: 1},    {flag: true, other: 2},    {flag: false, other: 3},    {flag: true, other: 4},    {flag: true, other: 5},    {flag: true, other: 6},    {flag: false, other: 7} ];We are ... Read More

Suppose, we have an array of Objects like this −const arr = [    { first_name: 'Lazslo', last_name: 'Jamf'     },    { first_name: 'Pig',    last_name: 'Bodine'   },    { first_name: 'Pirate', last_name: 'Prentice' } ];We are required to write a JavaScript function that takes in one ... Read More

Suppose, we have the following JSON object −const input = {    "before": {      "device": [        {          "id": "1234",          "price": "10",          "features": [            {         ... Read More

Given a string that consists of only two types of characters: "(" and ")". We are required to write a function that takes in one such string and balances the parentheses by inserting either a "(" or a ")" as many times as necessary.The function should then return the minimum ... Read More

We are required to write a function that compares two arrays and creates a third array filling that array with all the elements of the second array and filling null for all those elements that are present in the first array but misses out in the second array.For example −If ... Read More

We are required to write a JavaScript function that takes in two arguments −An Array, say arr, of literals that may contain some repeating elements.A number, say limit.The function should validate that no element of the array is repeated more than limit number of times. If any element is repeated ... Read More

Suppose, we have a square matrix represented by a 2-D array in JavaScript like this −const arr = [    [1, 3, 5],    [3, 5, 7],    [2, 4, 2] ];We are required to write a JavaScript function that takes in one such array.The function should return the difference ... Read More