Category Archives: JavaScript

Unraveling the Power of Jest: A Comprehensive Guide

Unraveling the Power of Jest: A Comprehensive Guide

In the realm of modern software development, testing is indispensable. It ensures the reliability, stability, and quality of our codebases. Among the plethora of testing frameworks available, Jest stands out as a powerful and developer-friendly tool for testing JavaScript applications. In this comprehensive guide, we will delve deep into Jest, uncovering its features, best practices, Continue Reading »

Dialogflow Integration in Spring Boot : A Developer's Guide

Dialogflow Integration in Spring Boot : A Developer’s Guide

In the ever-evolving landscape of software development, Google’s Dialogflow is a powerful tool that enables developers to build conversational interfaces form applications, and integrating it with a Spring Boot backend can provide a seamless and efficient user experience. In this guide, we will explore the steps to integrate Dialogflow into a Spring Boot application, empowering Continue Reading »

EVENT LOOP IN JAVASCRIPT

Event Loop in Javascript

Introduction The event loop is a mechanism that is an integral part of the browser environment and runs continuously, whether the code is synchronous or asynchronous. The primary function of the event loop is to manage the execution of JavaScript code, placing callbacks in a queue and pushing them onto the call stack when they Continue Reading »

Exploring the Power of NestJS

Exploring the Power of NestJS

In the ever-evolving landscape of web application development, choosing the right framework for your backend can make all the difference. One such framework that has been gaining significant attention and popularity is NestJS. With its unique blend of modern JavaScript and TypeScript features, as well as its modular architecture inspired by Angular, NestJS has quickly Continue Reading »

Polyfills in JavaScript

In JavaScript, a polyfill is a piece of code (usually a JavaScript script) that provides modern functionality to older browsers or environments that lack support for certain features. Polyfills help bridge the gap between what’s available in modern JavaScript and what’s supported in older browsers, allowing developers to use newer features without worrying about compatibility Continue Reading »

Java 17 feature

Java 17 was released in September 2021 and it comes with several new features and improvements. In this blog, we will take a closer look at some of the most notable features of Java 17.  Sealed Classes (JEP 409)  Sealed classes are a new type of class introduced in Java 17. They provide more control Continue Reading »

Applet in Java

 Java applets are small programs that run on a web browser to perform a specific task. They were introduced with the release of the first version of Java in 1995 and quickly became popular for their ability to add dynamic content to web pages. Applets are essentially mini-programs that are written in Java and run Continue Reading »

Java Predicate

Java Predicate is a functional interface that is part of Java.util.function package. It was introduced in Java 8. It represents a single argument function that returns a boolean value. A Predicate takes an input and returns either true or false, depending on the condition that is specified in the function. Using predicate to check if Continue Reading »

Memoization in Javascript

Memoization is a powerful technique used in computer science to optimize the performance of functions that are called repeatedly with the same arguments. In JavaScript, memoization is particularly useful for expensive computations that involve complex algorithms or data structures. At its core, memoization involves caching the result of a function based on its input arguments. Continue Reading »

Difference pass by reference or pass by value

Before discussing into JavaScript pass-by-reference or pass-by-value function, it is known about the difference between primitive and non-primitive. Primitive Values: – Data Types string, number, null, undefined, symbols, and Boolean are primitive values. Primitive values are passed by value in JavaScript. Non Primitive Values: – object, array, and function are non-primitive values. All objects and Continue Reading »

Java 11 feature and Comparison

Oracle provides new Java versions every six months. Even before it was launched, the September Java 11 version created quite a stir in the computer science industry by announcing that commercial usage of Java would subsequently be charged. The following articles will highlight major JDK 11 features, advancements, and deprecated functionality. Important Changes and Information: Continue Reading »

Performance tuning in Java 

Performance tuning is an essential aspect of software development, especially in enterprise-level applications where performance plays a significant role in user satisfaction and system stability. Java, being a popular programming language for enterprise-level applications, provides many tools and techniques for performance tuning. In this blog, we will discuss performance tuning in Java and the best Continue Reading »

Role of equal() and hashCode Methods()

In Java, HashMap is a widely used data structure that stores elements in key-value pairs. It provides constant-time performance for basic operations like adding, removing, and accessing elements. The implementation of HashMap relies heavily on the equals and hashCode methods, which are used to ensure the uniqueness of keys and the efficiency of lookup operations. Continue Reading »

Generating Java Code from Open API

Introduction:-  Open API (open application programming interface) Open API Generator can generate code based on an Open API yaml specification. We can generate request models, response models, and controllers of API. Following are the steps to create java code from Open API:- Step 1:-Create a yaml file for your API By using this Swagger.io, below Continue Reading »

Closure in Javascript

As per the definition of Javascript Developer, Closure is defined as the combination of a function bundled together (enclosed) with references to its surrounding state (the lexical environment). But what is meant by the terms “enclosed”, “surrounding state“, and lexical environment? No need to worry, we’ll discuss their terms and closure in this article with Continue Reading »

Carina Framework

Carina Open Source Testing Tools : Carina is a Java-based test automation framework that unites all testing layers: Mobile applications (web, native, hybrid), WEB applications, REST services, and Databases. Pros ● Carina Framework is built on top of the most popular open-source solutions like Selenium, Appium, and TestNG allowing to reduce dependence on the specific Continue Reading »

Depth First Search (DFS) – Graph Traversal

Table of contents Definition Conceptual Implementation Java Code & Explanation Applications of DFS   Definition Depth First Search (DFS) is an algorithm for traversing Graph Data Structure. The algorithm starts at some arbitrary node in the graph and explores as far as possible along each branch before backtracking. Stack Data structure is needed to keep Continue Reading »

JavaScript Arrays

An array is a linear data structure and collection of items stored at a contiguous memory location. Pairs of square brackets [ ] represent an array and all elements are comma (,) separated. An Array can hold multiple values(elements) of any type i.e (String, Number, Boolean, objects, and even other Arrays ) under a single Continue Reading »