We are required to write a JavaScript function that takes in a read only array of n + 1 integers between 1 and n.The function should find one number that repeats in linear time and using at most O(n) space.For example If the input array is −const arr = [3 ... Read More

Suppose, we have an array that contains some demo credit card numbers like this −const arr = ['4916-2600-1804-0530', '4779-252888-3972', '4252-278893-7978', '4556-4242-9283-2260'];We have been tasked with creating a function that takes in this array. The function must return the credit card number with the greatest sum of digits.If two credit card ... Read More

Suppose, we have the following array of objects −const arr = [    {"2015":11259750.05},    {"2016":14129456.9} ];We are required to write a JavaScript function that takes in one such array. The function should prepare an array of arrays based on the input array.Therefore, the output for the above array should ... Read More

We are required to write a JavaScript program that provides users an input to fill in a number.And upon filling when the user clicks the button, we should display the sum of all the digits of the number.ExampleThe code for this will be −JavaScript Code −function myFunc() {    var ... Read More

We have a mixed array that we need to sort by alphabet and then by digit −const arr = ['Ab-1', 'Ab-11', 'Ab-12', 'ab-10', 'ab-100', 'ab-101', 'ab2', 'ab-3', 'ab-105'];ExampleThe code for this will be −const arr = ['Ab-1', 'Ab-11', 'Ab-12', 'ab-10', 'ab-100', 'ab-101', 'ab2', 'ab-3', 'ab-105']; const alphaNumericSort = (arr = ... Read More

Suppose, we have a 2-D array like this −const arr = [    [3, 1],    [2, 12],    [3, 3] ];We are required to write a JavaScript function that takes in one such array.The function should then create a new 2-D array that contains all elements initialized to undefined ... Read More

Suppose we have the following array of objects −const arr = [    {       'name' : 'd',       'index' : 3    },    {       'name' : 'c',       'index' : 2    },    {       'name' ... Read More

Suppose we have an array of objects that contains data about some houses and price like this −const arr = [    {       "h_id": "3",       "city": "Dallas",       "state": "TX",       "zip": "75201",       "price": "162500"    }, ... Read More

We are required to write a JavaScript function that takes in an array of Numbers. Our function should iterate through the array and pick the greatest (largest) element from the array and return that element.ExampleThe code for this will be −const arr = [5, 3, 20, 15, 7]; const findGreatest ... Read More

Suppose, we have a nested array of arrays like this −const arr = [    ["LEFT", "RIGHT", "RIGHT", "BOTTOM", "TOP"],    ["RIGHT", "LEFT", "TOP"],    ["TOP", "LEFT"] ];We are required to write a JavaScript function that takes in one such array. The function then should pick the smallest subarray (smallest ... Read More