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Javascript Articles
Page 37 of 534
Game Development Using JavaScript
In this tutorial, we will learn about whether we can create games using JavaScript or not. We can, of course. JavaScript games are entertaining, simple, and a fantastic method for youngsters to learn how to code. Nearly all internet websites employ the popular programming language known as JavaScript. A web application can be enhanced using JavaScript by adding animations and interactivity that improve gaming and web browsing. JavaScript's capacity to create games that can be played readily online is a common topic that draws young people to learn how to program. It makes sense that more game developers ...
Read MoreTop 7 Reasons to Love JavaScript
JavaScript is a dynamic programming language for creating websites, web applications, video games, and many other interactive experiences. You can add dynamic features to websites that you couldn't achieve with only HTML and CSS. JavaScript is the programming language that powers modern web browsers to create dynamic, interactive content. You witness JavaScript in action whenever you see dropdown menus, content that loads without refreshing the page, or elements that change colors dynamically. Top 7 Reasons to Love JavaScript 1. Versatility Across Multiple Domains JavaScript serves multiple development needs effectively. While Python excels in machine learning and ...
Read MoreHow to highlight an object when a mouse is hovered over it using FabricJS?
We can create a Polygon object by creating an instance of fabric.Polygon. A polygon object can be characterized by any closed shape consisting of a set of connected straight line segments. Since it is one of the basic elements of FabricJS, we can also easily customize it by applying properties like angle, opacity etc. FabricJS provides us with an extensive set of events with which we can create different effects. Since we want the change to occur when the mouse is hovered, we will use the mouse:move event which is fired when the mouse is moved. Our second requirement ...
Read MoreExplain the Scope and Scope Chain in JavaScript
In JavaScript, the scope defines how and in which part of our code we can access the variables and functions. In simple terms, the scope helps us improve our code's security and readability. So, we can access the variables and functions only inside its scope but not outside. We will discuss multiple types of scopes in this tutorial. Global Scope in JavaScript The variables and functions defined globally mean outside all blocks and functions with global scope. We can access all variables and functions with the global scope anywhere inside our code. Syntax Users can ...
Read MoreExplain the benefits of spread syntax & how it is different from rest syntax in ES6?
In the ES6 version of JavaScript, spread syntax is introduced as a very powerful feature. We can use the spread syntax to expand the array or objects into the variable of the same data type. For example, before the spread syntax was introduced in the ES6, developers were using the for loop to copy all elements of one array to another array. Can you copy all elements of one array to another by writing one linear code using the spread syntax rather than writing the 5 to 7 lines of code using the for loop? Yes, you heard right! ...
Read MoreLogging HTTP Requests and Errors using Morgan.js
Morgan is a middleware for Node.js that simplifies HTTP request logging in Express applications. It automatically captures and formats request information, eliminating the need to write custom logging code manually. Morgan helps gather logs from your server and prepares them for analysis. It provides many predefined formats and customization options, making it suitable for both small and large projects. Installing Morgan Install Morgan using npm: npm install morgan Then import it into your application: const morgan = require('morgan') Basic Usage Example Here's a simple Express application using Morgan ...
Read MoreExplain the working of timers in JavaScript
In JavaScript, timers are a very noteworthy feature. As like the normal watch timer, we can start the timer at a time and execute the function or code in JavaScript after a particular time. In simple terms, we can use the timer to execute the code after some delay. For example, when you visit some website, it shows the signup box after 3 to 4 minutes of your visit, and that we can achieve using JavaScript. We can set the delay timer to show the signup popup box. Another good example of the timer in real life is ...
Read MoreExplain the purpose of the 'in' operator in JavaScript
This tutorial will teach about the 'in' operator in JavaScript. There are many operators available in JavaScript, such as arithmetic operators to perform mathematical operations, assignment operators, equality operators, etc. The 'in' operator is also one of them, which we can use to find properties from the object. Before we start, let me ask you a question. Have you ever needed to check for the existence of the object's properties while coding with JavaScript? If yes, how did you deal with it? The answer is simple you can use the 'in' operator, which returns the Boolean value based on ...
Read MoreExplore the concept of JavaScript Function Scope and different types of JavaScript Functions
In JavaScript, various scopes allow us to access the functions and variables from different places in our code. We will learn about the function scope in this tutorial. Also, we will explore the different types of function expressions in JavaScript. Function Scope When we create a new function in JavaScript, it also creates the scope for that particular function. It means that whatever variables we declare inside the function or define the nested function inside it, we can only access it inside the function block. If we try to access the variables defined inside the function block ...
Read MoreExtract unique objects by attribute from an array of objects in JavaScript
We will learn to extract unique objects by attribute from an array of objects in this tutorial. Sometimes, we need to filter objects from the array of objects based on a particular attribute. For example, we have an id as a key to identify the object. So, we need to ensure that the array contains only a single object with a single id. If two or more objects contain the same primary key value, it can cause the problem of uniquely identifying objects. Here, we will learn different approaches to filter all unique objects from the array based ...
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