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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 »
The map method holds key and value pair, the key can be any datatype. The map method is the function for every array element and returns the new part. The map method does not change the original array. We can create a map method passing an Array to a new Map(). We can set the Continue Reading »
Kotlin Variables are containers for storing data values. The data of variables can be changed and reused depending on conditions. To create a variable we can use var or val, and assign a value to it with an equal sign (=) Variable Declarations Kotlin uses two keywords to declare variables val and var. Example : Continue Reading »
Waterfall Model:- The Waterfall Model was the first Process Model to be launched. It is also called the successive life cycle model. It is very easy to understand and use. In the waterfall model, each phase must be completed before the next phase begins and there is no overlap in stages. The Waterfall model is Continue Reading »
What is Time Complexity? Time Complexity is the time consumed by the algorithm to complete its execution. Time Complexity is measured by summing the time of all the elementary operations. There are many notations to represent the time complexity like:- (1)Big Oh, O (2)Omega, Ω (3)Theta, Θ But, the most commonly used notation for Time Continue Reading »
A Person with another programming background is definitely confused with hoisting in Javascript. So let’s deep dive into the hoisting in javascript The Javascript engine creates the global execution context when we execute a piece of Javascript code. Global Execution Context has two phases : (i) Creation Phase (ii) Execution Phase Definition: During the creation Continue Reading »
When you hear the term software testing, do you think about one particular type of test — such as functional testing or Non Functional testing — or do you immediately start visualization the complex, interconnected web of test types that comprise the broad world of software testing? Most experienced test engineers and developers understand that Continue Reading »
“git add .” : is a command used to add a file that is in the working directory to the staging area. “git commit”: is a command used to add all files that are staged to the local repository. “git push”: is a command used to add all committed files in the local repository to Continue Reading »
The basic aim of the String Handling concept is storing the string data in the main memory (RAM), manipulating the data of the String, retrieving the part of the String, etc. String Handling provides a lot of concepts that can be performed on a string such as concatenation of string, comparison of string, finding the Continue Reading »
What are generics in java? Generics is a term that denotes a set of language features related to the definition and use of generics types and methods. Java generics programming is introduced in J2SE 5 to deal with type-safe objects. It makes the code stable by detecting the bugs at compile time. Java generic methods Continue Reading »
Introduction of Recursion and Dynamic Programming: Recursion is the process in which a function calls itself until the base cases are reached. And during the process, complex situations will be traced recursively and become simpler and simpler. The whole structure of the process is tree-like. Recursion does not store any value until reaching the final Continue Reading »
Annotations are used to provide metadata about class or method in java and can be used while compiling the program. Annotations were introduced in Java 1.5 version. Before that, we had an XML file for configuration. We write annotations with the ‘@’ sign, for example, @Override annotation. Here ‘@’ sign tells the compiler about the Continue Reading »
Core Java Concepts: Serialization Serialization is defined as the process of converting an object into a sequence of bytes that can persist in a database or can be sent through streams. Serialization saves the state of objects for recreation without having to reprocess them on different platforms. Serialization is useful for storing, Transmitting the state Continue Reading »
Debouncing in JavaScript Debouncing is a technique, use of Denouncing we can write better performance code that gets executed repeatedly within a period of time Debouncing ensures that time is taken to task, debouncing prevent unnecessary event on the web Debouncing code ignores unnecessary calls until the call has stopped for a particular time period. Continue Reading »
What is currying? Currying is a technique of evaluating a function with multiple arguments, into a sequence of functions with a single argument. OR In other words, while a function, rather than taking all arguments at one time, takes the primary one and goes back to a new function that takes the second and returns Continue Reading »
The process of placing a list of items in a specified manner is known as Sorting. Some common criteria for sorting are alphabetical and numerical. It can be done in an ascending manner or in descending order. We all know that Collections.sort has the ability in sorting an arrayList for example, alphabetically if they are Continue Reading »
The Destructuring introduced new features of ES6.JavaScript provides a mechanism to handle the array and properties of objects in a much more innovative way. this mechanism is called destructuring. destructuring means implies a complex structure into the simpler parts. Destructuring allows us to extract multiple properties from an object or an Array. It is a Continue Reading »
Well, it has been noticed that all the primitive data types like int, float, double, etc in Java are dealt with differently. Even after the good performance offered by the primitive data types, there are circumstances when we might need an object representation of the primitive data type. Moreover, it has been witnessed that many Continue Reading »
A closure is a combination of a function bundled together (enclosed) with references to its surrounding state (the lexical scope). Lexical scoping The stance of a variable asserted in the source code denotes its scope in syntactic figuring. For example: let name = ‘John’; function greeting() { let message = ‘Hi’; console.log(message + Continue Reading »
Closures:- One of the greatest features in javascript is closures and it’s widely used but a little bit confusing term of javascript. So let’s understand what is closures. In simple words closures function are gives you access to an outer function from the inner function. We will start the fundamental term lexical scope known as Continue Reading »
Bug reports are a necessary part of any software development process. So it should be the responsibility of QA to make sure that bugs should be written in a totally understating form. How to write a Bug : The bug should be easy to understand as a technical person and non-technical both can understand it. Continue Reading »
Imagine you’re building a UI and you need to connect to an API. When you implement curl calls with the UI, it does not work. You then check the code, and everything seems to be fine. After changing the site or method, it appears that the HTTP call is working. It’s most likely that the Continue Reading »
Event Bubbling: In the event bubbling, an event starts at the most specific element and then flows upward toward the least specific element. For better understanding let’s take an example:-Suppose we have created a div inside the body tag and then we create a button inside that div. Let’s add the “Click” function on the Continue Reading »
In this article, we will discuss what are pure functions in javascript? What are pure components? When to use pure components in React and when not to use them? What is the difference between Pure components and class and functional components? What are the advantages of pure components over others? When a function is called Continue Reading »
CKEditor5 react is a modern JavaScript-rich text editor with a modular architecture. It is one of the most used free WYSIWYG rich text editors used because of it is clear UI and customization features. Generate Plugin Path – my-app npm run strapi generate:plugin wysiwyg Install CKEditor dependencies Path – ./plugin/wysiwyg npm i @ckeditor/ckeditor5-react @ckeditor/ckeditor5-build-classic Continue Reading »
When we mention common programming languages, it’s necessary to remember Java! Actually, it’s the most common programming language in the world with around seventy lakh Developers using it Regularly. One among the explanations for this can be the versatile nature of Java. Be it desktop apps, mobile apps, or web applications, you name them and Continue Reading »
React Hooks introduced some memory optimization hooks to improve performance. Data Hooks are hooks which store data. You store data that the specified portion of the UI specifically relies on for visual changes and memoize/cache data that a given portion UI don’t directly rely on for visual changes. Storing is different from memoizing/caching. There’s a Continue Reading »
Today we are going to discuss what are the best practices we should follow in SEO while building a website. But before lets us discuss what is SEO? Search Engine Optimization is popularly known as SEO, which is the concept/practice of increasing the quantity and quality of traffic to your website through search engine results. In Continue Reading »
Deno is a simple, modern, and secure runtime for JavaScript and TypeScript that uses V8 and is built in Rust based on the Tokio platform (which provides the asynchronous runtime needed by JavaScript), still running Google’s V8 engine Deno is created by the same person Ryan Dahl as node.js was, Deno is there to fix Continue Reading »
It is a new feature of React Js introduced in version16. This concept is used for handling UI errors which we face. Before version 16 there is no concept to handle this type of issue, we use try… catch… for handling. When an error occurs in our app our complete app will crash and our Continue Reading »