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In JavaScript, since functions are objects we can pass them as parameters to another function. These functions can then be called inside another function and the passed function is referred to as a callback function. Why Use Callbacks? The following are the advantages of using JavaScript Callbacks − Encapsulation: Separates logic for better modularity. Reusability: Allows different callback functions for different processing needs. Asynchronous Execution: Commonly used in event handling, API requests, and file operations. Using a Callback Function Below is an example where an add() ... Read More
In this article, we will learn to calculate the union of two objects in JavaScript. The union of two objects results in a new object that contains all the properties of both objects. What is the Union of Two Objects? The union of two objects is the process of combining the properties of both objects into a single object. For example Input − const obj1 = { name: " ", email: " " }; const obj2 = { name: ['x'], email: ['y']}; Output − const output = { name: {" ", [x]}, email: {" ", [y]} }; Different Approaches ... Read More
In this article, we will learn to calculate the union of two objects in JavaScript. The union of two objects results in a new object that contains all the properties of both objects. What is the Union of Two Objects? The union of two objects is the process of combining the properties of both objects into a single object. For example Input − const obj1 = { name: " ", email: " " }; const obj2 = { name: ['x'], email: ['y']}; Output − const output = { name: {" ", [x]}, email: {" ", [y]} }; Different Approaches ... Read More
In this article, we will learn to calculate the area of a Tetrahedron using Java. A tetrahedron is a type of polyhedron that consists of four triangular faces. What is a tetrahedron? A tetrahedron is a three-dimensional polyhedron with four triangular faces, six edges, and four vertices. If all its faces are equilateral triangles, it is called a regular tetrahedron. The surface area of a regular tetrahedron can be calculated using the formula − 𝐴 = sqrt{3} . s^2 Where A is the surface area, where s is the length of a side of the tetrahedron. Calculating the Area of ... Read More
The reciprocals of an arithmetic series without considering 0 is known as Harmonic series. If $a_{1}, a_{2}, a_{3}$… is arithmetic series then $\frac{1}{a1}$, $\frac{1}{a2}$, $\frac{1}{a3}$, … is the harmonic series. In this article, we will discuss how to implement a Java program to find the harmonic series. Harmonic Series For 1st term n = 1 and for every term n is incremented by 1 and at last the nth term the value is ‘n’. Harmonic series : $1+\frac{1}{2}+\frac{1}{3}$.......+$\frac{1}{n}$ Where, 1/n is the nth term of harmonic series. Problem Statement Write a Java program to find the ... Read More
In computer programming, it's essential to keep data well-organized and easy to access and modify. The Vector is a flexible array that can grow or shrink as needed, making it an important data structure for this purpose. In Java, Vectors are especially useful because they allow you to store different types of objects together.In this guide, we’ll learn to swap elements in a Vector in Java. Swapping elements is a common task, especially when sorting or rearranging data. We’ll show two different ways to do this, with examples and clear explanations. Syntax Vector vector = new Vector(); // Create a ... Read More
Linear algebra, a significant area of mathematics that forms the foundation of many fields in physics, engineering, and even computer science, uses concepts like eigenvalues and eigenvectors. In order to solve a variety of differential equations and gain a deeper understanding of the complex aspects of a particular system, both provide a toolset about linear transformations as linear operators, as well as their properties and activity. Let's discuss the mathematical details of eigenvalues and eigenvectors and highlight their applications and differences in this article. What are Eigenvalues? The numerical values associated with the linear transform's eigenvectors are known as eigenvalues. ... Read More
In this article, we will learn about iterative Merge sort in Java. Unlike the traditional iterative Merge Sort, the following Java program implements a recursive merge step while dividing the array and an iterative approach for merging. What is merge sort? Merge Sort is a popular sorting algorithm that follows the Divide and Conquer rule. It recursively divides the array into two halves, sorts each half, and then merges them back in a sorted manner.The following are three main steps to perform Merge sort in Java − Divide: The array is split into two halves ... Read More
In this article, we will learn about JavaScript ArrayBuffer objects. The ArrayBuffer object in JavaScript is a fundamental part of the Web API for efficiently handling binary data. What is ArrayBuffer? The JavaScript ArrayBuffer object represents a generic, fixed-length raw binary data buffer. To manipulate the contents of an ArrayBuffer object we have to create a DataView object as we cannot manipulate the contents directly. We can read and write both using the DataView object. Syntax new ArrayBuffer(byteSize) The byteSize parameter specifies the array buffer size in bytes that will be created. Use Cases of ArrayBuffer Following are the use ... Read More
In this article, we will learn to use the prompt() function in Javascript. The prompt() method in JavaScript allows developers to collect user input through a pop-up dialog box. What is the prompt() Method in JavaScript? The prompt dialog box is very useful when you want to pop-up a text box to get user input. Thus, it enables you to interact with the user. The user needs to fill in the field and then click OK. This dialog box is displayed using a method called prompt(). Syntax var userInput = prompt("Message", "Default value"); The following are the parameters of the ... Read More