In the given problem statement we have to calculate the cumulative sum at each index with the help of Javascript functionalities. So we will use basic Javascript syntax and functions to solve this problem. What is Cumulative sum ? The cumulative sum is also known as running sum or prefix sum. So this sum is the calculation of the sum of a series of numbers up to a given index or position. In this process the numbers iteratively add each number in the series to the sum of the previous items. So the resultant new series in ... Read More

In the given problem statement we have to find the largest and smallest number in an unsorted array of integers with the help of Javascript functionalities. So we will use an array of integers and find the smallest and largest number from the array. Understanding the Problem The problem we have is to find the largest and smallest values in an unsorted array of integers. So in this task we will see a solution in Javascript. With the help of it we can determine the largest and smallest numbers in an array without sorting the array. For example ... Read More

In the given problem statement we are required to factorize the given number with the help of Javascript functionalities. So we will use loops and basic mathematics to factorize the given number. Understanding the Problem The problem at hand is to factorize the given number with the help of Javascript. So the factorization means we will have to find all the prime factors of a number. The prime factors are the prime numbers which can divide the given number without leaving a remainder. So with the help of finding the prime factors we will be able to ... Read More

In this article we will see how to find a pair of items in an array which has sum equals to a specific target number. So we will use JavaScript to implement the algorithm. Understanding the Problem The problem at hand is to find the pair of numbers in the array whose sum is equal to the given target value. And the target value should also be there in the array. Or we can say that we have to identify pairs (a, b) where a + b = c and c is also present in the array. ... Read More

We are required to write a JavaScript function that takes in an array of Numbers as the first argument and a single number as the second argument.The function should find and return that number from the array which is closest to the number specified by the second argument.For example −const arr = [34, 67, 31, 53, 89, 12, 4]; const num = 41;Then the output should be 34.ExampleFollowing is the code −const arr = [34, 67, 31, 53, 89, 12, 4]; const num = 41; const findClosest = (arr = [], num) => {    let curr = arr[0];   ... Read More

In the given problem statement we are required to check if the string ends with the desired character with the help of Javascript functionalities. So we will use basic functions and syntax of Javascript to solve the problem. Understanding the problem The problem at hand is to check if a given string is ending with the given specific character in Javascript. For example suppose we have a string as Hello World! and we have to check if the exclamation ‘!’ mark is present at the end of the string or not. So after comparing with the string the ... Read More

In the given problem statement we have to find the difference between sum of square and square of sum with the help of Javascript functionalities. So we will use basic Javascript to solve this problem. Understanding the Problem The problem at hand is to compare the two integers given. This operation is a common operation when it comes to sorting the data. In this task we will find how to compare two integers and check their relationship with the help of Javascript. For example, we have two integers like 10 and 20. So we can say that 10 ... Read More

In the given problem statement we are required to find the common characters count for the given strings with the help of Javascript functionalities. So we will use basic Javascript to solve this problem. Understanding the problem The problem at hand is to find the common characters between the two given strings. So for solving this problem we will determine how many characters they have in common. For example suppose we have two strings like "abaac" and "baaaa" so in these two strings we can see there are 2 common characters which are 'a' and 'b'. So the ... Read More

In the given problem statement we are required to get the century from the given year with the help of Javascript functionalities. So we will use the basic functions of Javascript to solve this problem. Understanding the Problem The problem at hand is to find the century number of the given input year. So basically we have to create an algorithm for finding the century number corresponding to the given year. So first understand what the century number is! A century represents a period of 100 years, beginning from the year 1. For example, the 20th century ... Read More

In the given problem statement we have to find that the string is a palindrome and the string should also have punctuation and write code with the help of Javascript functionalities. Understanding the problem The problem at hand is to explore how to determine whether a given string is a palindrome or not with the help of Javascript. So let's see what palindrome is first. A palindrome is a word, phrase, a number or a sequence of letters which can be read the same forward and backward. For example: racecar is a palindrome string. Logic ... Read More