To append HTML code to a div using JavaScript, we first need to select the div element. We can do this by using the document.getElementById() method and passing in the id of the div element. Next, we use the innerHTML property of the div element and set it equal to the HTML code we want to append, preceded by the += operator. Approach One approach to appending HTML code to a div using JavaScript would be to select the div using its id, Then use the innerHTML property to add the desired HTML code. For example − var div ... Read More

Sometimes, we require to uncheck a radio button using JavaScript or JQuery. For example, we use the radio button in the form. When the user presses the clear form button, we need to uncheck all radio buttons and allow again users to choose any option from the radio button. In this tutorial, we will learn various methods to uncheck single or multiple radio buttons using JQuery or JavaScript. Use the JavaScript to uncheck the radio button We can access the radio button in JavaScript using id, tag, name or other ways. After that, we can uncheck the radio ... Read More

While working with the data, removing the unnecessary white spaces from the string is necessary. So, we need to trim a string at the beginning or end. If we keep unnecessary white spaces in the data, it can cause some issues. For example, while storing the password, if we don’t trim the white space, it can mismatch when users try to log in another time to the app. In this tutorial, we will learn to trim a string at beginning or ending in JavaScript. Use the trimRight() method to trim the end of the string The trimRight() method ... Read More

We have given a string and need to convert it into a function in JavaScript. Sometimes, we get mathematical or function expressions in the form of the string, and executing that expression, requires converting strings into the function expression. In this tutorial, we will learn different approaches to converting the given string into a functional or mathematical expression. Use the eval() method The eval() method takes the expression as a parameter and evaluates the expression. For example, if we pass the ‘2 + 2’ string as a parameter of the eval() method, it returns 4 as it evaluates the ... Read More

In JavaScript, the iterator is a collection of elements through which we can iterate and access a single element every iteration. The set, map, or object is an iterator in JavaScript, and we can’t access the elements of the iterator using the index like the array. So, we first require to convert the iterator into the array. Here, we will use different methods like an array.from(), etc., to convert an iterator to the array. Use the for-of loop The for-of loop iterates through every element of the iterator lie set and map. Inside the for-of loop, we can ... Read More

In JavaScript, we sometimes require to skip array elements while using the map() method. For example, we need to map value from one array to another array after performing some mathematical operations on the element only if the array value is finite. In such cases, users can use the below approaches to skip over array elements while using the map() method. Use the if-else statement In the array.map() method, we can use the if-else statement to skip over the element. If the element fulfills the if-else statement condition, we need to return the element for mapping; Otherwise, we ... Read More

The sorting string is to arrange strings in the dictionary or alphabetical order. It is usual to sort the array of strings while developing applications using JavaScript. In this tutorial, we will learn to sort strings in JavaScript. For example, string sorting is very useful here if you got some data from the API and want to show that data in the sorted order. Here, we will learn to sort strings using the built-in methods and various naïve approaches. Use the sort() method to sort strings In JavaScript, sort() is the built-in method we can use with the array. Generally, ... Read More

To convert strings into lowercase and uppercase, we can use the JavaScript string class’s built-in methods like toLowerCase() and toUpperCase(). Furthermore, we can use the string length property or substring() method to split the string in half part. We will learn two approaches in this tutorial to convert half string to uppercase and the other half to lowercase using JavaScript. Use the for-loop, toUpperCase(), and toLowerCase() method We can use the for-loop to get the half-string. After that, we can use the toUpperCase() method to convert the first half of the string the uppercase. After that, we need to use ... Read More

Material-UI provides a variety of components that help us to build user interfaces with a consistent look and feel. One of the components that Material-UI provides is the Tabs component, which allows us to create tabbed interfaces in our applications. In this tutorial, we will learn how to check which tab is active using Material-UI, a popular React UI library. Use the useState hook to check which tab is active Users can follow the steps below to check which tab is active using Material UI. Step 1 − First, users need to install Material-UI. We can do this by ... Read More

React Native is a framework that allows developers to build mobile applications using JavaScript and React. It allows developers to use the same codebase for both iOS and Android platforms, making it a cost-effective and efficient solution for mobile development. React Facebook first introduced native in 2015 as an open-source project. It is based on React, a JavaScript library for building user interfaces, and allows developers to build mobile apps that look and feel like native apps. Use these tools and resources to build React Native app There are two main ways to install and set up a React Native ... Read More