Suppose, we have an array of literals like this −const arr = [3, 5, 5, 2, 23, 4, 7, 8, 8, 9];We are required to write a JavaScript function that takes in such an array and a number, say n (n must be less than or equal to the length ... Read More

We are given two arrays say, arr1 and arr2 of positive Numbers. The number of values in both the arrays are the same.We are required to write a function that finds the maximum sum of products of their elements.Each element in arr1 has to be multiplied with exactly one element ... Read More

We are required to write a JavaScript function that takes in three unsorted numbers and returns the middlemost of them using minimum number of comparisons.For example: If the numbers are −34, 45, 12Then our function should return the following −34ExampleFollowing is the code −const num1 = 34; const num2 = ... Read More

We are required to write a JavaScript function that takes in an array of numbers and returns a subarray of two elements from the original array whose sum is closest to 0.If the length of the array is less than 2, we should return the whole array.For example: If the ... Read More

We are required to write a JavaScript function that takes in an array of numbers of length N (N should be even) and divides the array into two sub-array (left and right) containing N/2 elements each and do the sum of the subarrays and then multiply both the subarrays.For example: ... Read More

We are required to write a JavaScript function that takes in one such array and counts the sum of all distinct elements of the array.For example: Suppose, we have an array of numbers like this −const arr = [1, 5, 2, 1, 2, 3, 4, 5, 7, 8, 7, 1];The ... Read More

We are required to write a JavaScript function that takes in a number and checks whether it falls in Fibonacci series or not. We should return a boolean.Following is the code to check for Fibonacci −Exampleconst num = 89; const isFib = query => {    if(query === 0 || ... Read More

Suppose, we have a sorted array of literals like this −const arr = [2, 2, 3, 3, 3, 5, 5, 6, 7, 8, 9];We are required to write a JavaScript function that takes in one such array and returns the first number that appears only once in the array. If ... Read More

We are required to write a JavaScript function that takes in a Number, say n, and we are required to check whether there exist such three consecutive natural numbers (not decimal/floating point) whose sum equals to n.If there exist such numbers, our function should return them, otherwise it should return ... Read More

We are required to write a JavaScript function that takes in a lowercase string and sorts it in the reverse order i.e., b should come before a, c before b and so on.For example: If the input string is −const str = "hello";Then the output should be −const output = ... Read More