In this article, we are going to explore how to create a JavaScript object from the desired key-value pairs. Let’s understand the steps involved as below−Steps:Step I − We are first going to create an Empty Object.let object = {}Step II − Once the object is initialized with the null values we can add the desired {key, value} pairs in the object.let firstKey = 0; let firstKeyValue = "TutorialsPoint"; object[firstKey] = firstKeyValue;Step III − The resultant object is the JSON object that holds all the key-value pairs.console.log(object);Example 1In this example, we are creating a simple application. In the script part, ... Read More

In this article, we will be creating a FAQ (Frequently asked questions) accordion using JavaScript. The accordion is used to display the questions and will open up on clicking to display the answers. We can see the FAQ section on every website where all the top questions are covered. Today we will learn how to make these FAQ sections.Steps for creating the AccordionStep I −Firstly, we will be creating a nested HTML div tag that will hold all questions and answers. These div tags will depend upon the number of QnA to be displayed.Step II − We will use CSS ... Read More

In this article, we are going to explore creating a function that will allow the user to change the font size of the complete webpage. We can generally see this type of feature on some of the government websites in the top right corner. This is basically to facilitate people using the website to enlarge the web content as required.In this article ,we will be applying the same function using JavaScript & JQueryExample #1In the below example, we have created a simple div program and created two buttons i.e. Increase and Decrease. We have used these 2 functions to increase ... Read More

In this article, we are going to build a dynamic report using the inputs entered by the user. The user will enter the marks (in this case) and we will be populating these marks to calculate the final percentage of the student.We have also implemented the fail/pass status that will render whether a student has passed or failed based upon the entries done by the user. We will be using HTML, CSS, and JavaScript for the implementation.StepsWe will be creating an HTML template with rows and columns for name and subject scores. These subject scores will be further divided into ... Read More

In this article, we will be creating a Coming Soon Page that will display a timer for the event that will occur on a specific date and time. The timer will go in the opposite direction and at the time of the actual event, it will basically show the event page if configured.A coming soon is similar to a webpage with some special specifications to show. The specifications define what is next to come to the website (Like a launch of a new Smartphone, Feature, TV, Software, Tool, etc.)ApproachWe will first set up a page to be displayed on the ... Read More

An integer can be represented in various formats as described in the computed languages i.e. Binary, Decimal, Hexadecimal, etc. A Binary number consists of two digits only i.e. 0 & 1, whereas a decimal consists of digits from 0 to 9.We can convert a string to an integer by using the parseInt() conversion by default. But in other cases when the integer is represented in some other form we also need to pass the base string to decode it into the resultant number.Below is the syntax of parsing a string to an int.Syntax1. When the base value is providedparseInt(string_value, base)2. ... Read More

A CSV is a comma-separated value that is stored in a file with the .csv extension. This allows the user to store data in a tabular or spreadsheet format. In this article, we will learn to convert the data of a CSV string to 2D array objects in JavaScript, where the first row of the string defines the file headers. We will be first reading this row and then mapping the remaining values with them. We will be using the following function that will act as a prototype function from array and string since it will help map the data ... Read More

Computing the average of an array after mapping each element to a value in JavaScript can be done by using the forEach() loop, the parseInt() method, the reduce() method, and the for..of loop. In this article, we are going to fetch all the values from an array and after mapping each element to a numerical value we will calculate its sum thus to compute its average. Given below is an array consisting of values. We will compute the average by summing up the values and then dividing it by the number of values available. Suppose Input is: [1, 2, ... Read More

In this article are going to explore TypeScript and how to execute the same. TypeScript is an open-source programming language developed and maintained by Microsoft.Typescript is a bit syntactically different from the native JavaScript but also adds additional features to it. Typescript is the superset of JavaScript with a strong pace of development and object-oriented programming. It also does not run directly on the web browsers as JavaScript runsTypescript files need to be combined with JavaScript first and then they work as normal JavaScript. In order to compile and execute the typescript file, we need to install the node and ... Read More

In this article, we will be discussing the construction of an array. Once the array is created we will be looking out for a value by checking whether it exists in the array or not.But before checking for any particular value, let’s see how the arrays are created in JavaScript.Syntaxlet array = [arrayItem1, arrayItem2, arrayItem3 ...]Once the array is created, let’s see how to search for a specific value from the array. There are multiple approaches to searching for whether an element exists in the array or not. Below we are going to discuss the same.Approach #1This is a traditional ... Read More