In this tutorial, we are going to find all the elements present in the given array except the first element using JavaScript. Here we will create one array and using JavaScript will print all the elements on the HTML page leaving the first element. There are mainly two approaches we can use to do the above task. Both the methods are given as − Approach 1: By using the slice() Method The slice() method is a JavaScript method that is used to slice out the required amount of elements from the array. Syntax The following syntax can be used with ... Read More

In this tutorial, we are going to learn how can we find every element that exists in any of the two given arrays once means we need to take two arrays filled with some elements and then from those two arrays create a new array which contains all the elements present in both the array once i.e., no element should be repeated in the new array created. For example, we take two arrays and find every element that exists in any of the two arrays once Input const arr1 = [1, 2, 3, 4, 5] const arr2 = [1, 4, ... Read More

In this tutorial, we are going to learn how to find the binomial coefficient of two integers using JavaScript. Before learning it we should know what binomial coefficient is and what it refers to. What are Binomial Coefficients? Binomial coefficients refer to the positive integers that occur as coefficients in the binomial theorem. A binomial coefficient C(n, k) can be defined as the coefficient of x^k in the expansion of (1 + x)^n. A binomial coefficient of two numbers n and k signifies the number of combinations of r items that can be selected from a set of n items. ... Read More

Unary operators are the simplest operators in JavaScript which works on one value, or we can say on one operand. There are mainly six kinds of unary operators in JavaScript which are given as − Unary Plus Unary Minus Increment operator (Prefix) Increment operator (Postfix) Decrement operator (Prefix) Decrement operator (Postfix) In this tutorial, we are going to learn about the unary plus (+) operator. To use the unary plus operator we just need to put a plus sign in front of the operand. This operator is basically used to convert a non-numeric value to a numeric value, ... Read More

In this tutorial, we are going to build the famous hit the mouse game using HTML, CSS, and vanilla JavaScript. Many of you wondering what is Vanilla JavaScript, it is nothing just plain JavaScript written without the use of any libraries. In the hit the mouse game, the player needs to hit the mouse with the hammer in order to earn points and win the game. Approach To design the mouse game, we need to write the code IN HTML, CSS, and JavaScript. Step 1 − Firstly, let us look into the HTML part of the code; in this part, ... Read More

A Pong game is a two-player paddle game where each player’s task is to save the ball from hitting the wall. Whenever player 1 hits the ball at the opponent’s wall then player one will receive a point, and similarly, player 2 will get a point if he/she hits the ball at the opponent’s wall. In this tutorial, we will create a Pong Game in JavaScript. Approach To make the pong game using JavaScript we need to write code in HTML, CSS, and JavaScript. We have written certain functions in JavaScript to build the Pong game which is defined below ... Read More

The className property is used to change an element’s class. Here, we will see two examples − How to change the element’s class using className property. How to toggle between old and new classes. Change the element’s class using className property In this example, we will change the class of an element using the className property. Let’s say we have a div with class oldStyle − The div... We will set the above oldStyle class to a new class i.e. newStyle using the className property − function demoFunction() { ... Read More

In this tutorial, we will learn how to avoid jQuery function conflict with any other JavaScript library. For the jQuery function, the $ symbol is simply an identifier. A $ followed by a selector indicates that it is a jQuery selector. It is given a shorter identification as $ to save time while writing longer syntax. It includes all of the functions needed by a jQuery object, such as animation(), show(), hide(), show(), CSS, and many others. Furthermore, $ is superior in terms of memory to jQuery because $ takes a byte while jQuery uses 6 bytes for the same ... Read More

Voca is a JavaScript library that is used for manipulating strings. In this tutorial, we will take multiple examples to show how you can use the different functions available in Voca. Features of Voca Before we see all the examples, let's highlight some features that Voca brings to the table − It provides a multitude of functions that can be used to manipulate, query, escape, format strings. It also provides a detailed and searchable documentation. It supports a wide range of environments like Node, js, Safari 7+, Chrome, Firefox etc. It doesn't require any dependencies How to Install ... Read More

Morgan is a middleware that is available for Node.js which is used when we want to log HTTP requests. It is mainly used in Express projects. Morgan helps us simplify the logging work of HTTP requests that come and sent from an application in a single statement. In normal situations, developers often write all the logging code by hand and then end up logging what to store, how to save, and where everything is saved. It helps in gathering logs from your server and also prepares them for reading. It also has many predetermined defaults built-in to help the developers. ... Read More