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Web Development Articles
Page 100 of 801
How to implement backtracking for a climbing stairs practice in JavaScript?
In the given problem statement we are asked to implement backtracking for a climbing stairs practice with the help of javascript functionalities. In the data structures backtracking is popularly known to explore all the possible solutions. We can solve this problem with the help of a backtracking algorithm. What is the Backtracking Technique ? Let's understand the working of a Backtracking technique. Backtracking is a well known algorithm technique, which is basically used to solve the problem statements that include searching for all possible solutions. It is based on a depth−first strategy and it is used in combination with a ...
Read MoreGroup matching element in array in JavaScript
In the given problem statement we are asked to make a group matching element in an array with the help of javascript functionalities. As we talk about grouping elements of an array we usually use the reduce method. What is the reduce() function in JavaScript ? Let's understand the working of a reduce function in JavaScript. In javascript, the built−in method reduce() is used to iterate on all the elements of an array. This method accumulates an item based on every element of the array, which basically takes two arguments. First argument is an accumulator and the second value is ...
Read MoreGet value for key from nested JSON object in JavaScript
In the given problem statement we are asked to get value for key from nested JSON object with the help of javascript functionalities. In Javascript we can solve and access the json data object with the help of dot notation or bracket notation. Before starting coding for the given problem, let's understand what exactly is the JSON object: What is JSON and nested JSON objects? JSON’s full form is Javascript Object Notation. It is a standard text based format to show the structured data. It is basically used to transmit data in web applications, which means we can send ...
Read MoreFibonacci like sequence in JavaScript
In the given problem statement we are asked to create a fibonacci like sequence with the help of javascript functionalities. In the Javascript we can solve this problem with the help of recursion or using a for loop. What is the Fibonacci Sequence ? Let's understand the working of a Fibonacci sequence in JavaScript. As we know that Fibonacci sequence is a sequence of numbers in which every number is the sum of the two forgoing numbers. The series starts from 0 and 1. The next number in the series is 1 (0 + 1), followed by 2 (1 ...
Read MoreDetermining whether numbers form additive sequence in JavaScript
This problem says to determine if the given numbers in the array are in the form of additive sequence or not. We will check, If any two adjacent numbers in a sequence add up to the next number in the sequence, we can confirm this using a straightforward procedure. Understanding the problem To understand the above mentioned problem we need to first understand the problem in depth. If the question is broken down into subproblems, it will be easy to solve it. Consider any important procedures or stages that must be followed in order to solve the issue. So first ...
Read MoreTwo sum problem in linear time in JavaScript
The problem statement says to execute Two sum problem in linear time in JavaScript. It defines and explores the variety of algorithms that can help us find the least common factors present in mutual by the given source data in JavaScript. What is the Two sum problem in JavaScript ? Two Sum Problem in JavScript equals finding a pair of indices present in the array of numbers given as an input that adds up to the target sum which is also provided as an input by the user. Given an array of integers and ...
Read Moresorting array of numbers into sets in JavaScript
In the given problem statement we are asked to sort an array of numbers into some sets where the array is the input source provided by the user going from brute force method to optimized solution . What is an array in JavaScript ? If you are familiar with any other programming language like C, C++, or Java, you must have heard the term 'array.' In programming, an array is a collection of similar data elements under one roof. Now, an important question arises: if arrays are generally the same in all languages, then ...
Read MoreRemoving duplicates from a sorted array of literals in JavaScript
The problem statement says that given a sorted array of numbers as an input source by the user such that we need to remove the duplicates or repeated elements from it making it all new array containing only unique elements inside it. What is a Sorted Array in JavaScript ? A sorted array is a kind of array in javascript that follows a certain order of line in which each element is sorted in alphabetical and numerical order all before using the sort method in javascript itself. The already sorted speed array lets you speed up the ...
Read MoreInverting a binary tree in JavaScript
The problem statement asks the user that given a binary tree , you need to find the mirror image of the elements of the binary tree such that reverse the corresponding and parallel siblings of the tree branches . In short, invert the whole binary tree given the original binary tree as an input. The output of the problem statement looks like a reverse function of the input binary tree as the summary to implement for. What is a Tree in JavaScript A tree refers to one of the optimized data structures to hold data ...
Read MoreGenerating all possible permutations of array in JavaScript
In the given problem statement we are asked to generate every possible permutation of the array given as input by the in JavaScript going from brute force method to optimized solution . What is an array in JavaScript ? If you are familiar with any other programming language like C, C++, or Java, you must have heard the term 'array.' In programming, an array is a collection of similar data elements under one roof. Now, an important question arises: if arrays are generally the same in all languages, then how does JavaScript make arrays more ...
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