javascript add class to body on clickjavascript add class to body on click

tag. For example: Note that all of these methods can take multiple class names as arguments. With JavaScript and CSS combined user experience can be significantly improved. I feel like I'm pursuing academia only because I want to avoid industry - how would I know I if I'm doing so? It shouldn't be much to create an event handler for the desired elements that gets the class name of the element clicked, and then uses that value in the jquery select to get all other matching elements. tutorials: Add a class to the Body element using JavaScript. have to worry about: getting errors when removing a class that is not present on the element, adding the same class multiple times to the same element. We can also separate our function totally from the eventListener and our functionality will still remain the same: One of the best ways to learn is by making projects, so let's take what we've learned about the onclick and "click" eventListner to do build something. These are called parameters in JavaScript. You can console.log the target property to see the DOM element which was You can make a tax-deductible donation here. Its simple HTML with some facts about freeCodeCamp. By default, most events bubble up from the original event target to the document element. Using this code, the class will be added only on the element that was clicked and will not effect other elements in question. The majority of browser events bubble, or propagate, from the deepest, innermost element (the event target) in the document where they occur all the way up to the body and the document element. You can also add a class to the body element when an event occurs, e.g. Show me. body element, it will be omitted. What does "use strict" do in JavaScript, and what is the reasoning behind it? This also takes one or more class names as arguments and removes them from the elements class list. Let's see how to add a class to an HTML element when a user clicks on a button. * It compares the target selector on every bubble it hits, the comparison will be as expensive as it is complicated. * */. on the body object. How did FOCAL convert strings to a number? Every HTML element has a classList property. Here, if the class name of the article equals open (that is, we want to add the class of open to it, which was set to a maximum height of 1000px in the CSS), then we want to see the rest of the article. If the name doesnt correlate with whats in the HTML, it wont work. Add a class name to the div element with id="myDIV" (in this example we use a button to add the class). For example, when a user clicks on a button, when a user scrolls down the page, etc. This could be when a user submits a form, when you change certain content on the web page, and other things like that. Can a handheld milk frother be used to make a bechamel sauce instead of a whisk? In the DOM (Document Object Model, refers to all of the HTML), to change anything that relates to style, you need to write style then a dot (.). We do this by assigning it a class of open in the else block, which makes it show the rest of the article. To do this, you would use an event listener. // selecting the element let button = document.querySelector('#button'); // Add class to the element button.addEventListener('click', function() { button.classList.add('.main-btn'); }); Output: Click the button below and javascript will add a class to the button. Click the button below. Click me to add class! Thats because theres nothing JavaScript in the opening tag of our button, which is cool. All rights reserved. $links.click(function(){ var element = document.getElementById ("gfg"); // Adding the class geekClass to element. returns a live DOMTokenList collection of the class You can learn more about the related topics by checking out the following For example, if you have a list of elements with the class name example, you can use a loop to add another class to all of them: This will add the class new-class to all elements with the class example. In this article, you will learn 3 different ways JavaScript add class to HTML elements. In this article, we will be discussing a detailed overview of addclass JavaScript. I will also be using const to declare our variables instead of let and var, because with const, things are safer as the variable becomes read-only. This time around in our script, we need to select the button too (not just the freeCodeCamp text). We explored two different methods here, so now you can start using them in your coding projects. clicked by the user. // (" geekClass") as if there is already. The onclick event executes a certain functionality when a button is clicked. The commonly used syntax of this property to set or to return the class name is given below. element is clicked, the handleClick function is invoked. this is the targ What is the difference between "let" and "var"? Donations to freeCodeCamp go toward our education initiatives, and help pay for servers, services, and staff. element. Ask Paul Irish. Note Pass your class names separated with space in the method for WebIn JavaScript: object.onclick = function() {myScript}; Try it Yourself In JavaScript, using the addEventListener () method: object.addEventListener("click", myScript); Try it Yourself Let's see how javascript adds class dynamically to an HTML element. Get certifiedby completinga course today! In this example, I will explain you how to add class to element on clicked in vue js, we will show example of add class to element on clicked using vue js. This article has shown how to add, remove, and toggle classes on elements using the classList property and the className property. method to add a class to the body element. In some cases, you may want to add the same class to multiple elements on the page. For example, if you wanted to remove the active class from the body element, you would do the following: You can add multiple classes, without removing the old classes, by using the same += operator as follows . To add a CSS class to the HTML body element you can simply use the document.body element and add the class to the classList property. You might have seen examples online that reassign the className property on Then you can click on a "read more" button to show the rest. All browser compatibility updates at a glance, Frequently asked questions about MDN Plus. While working on the front end, we often need to add CSS dynamically to an HTML element. With each click, classList.toggle () will add the CSS class if it does not exist in the classList array and return true. forof Currently, Sam is the Founder of Crypto News, Australia. In this example, we are using the .className property to get the class names of the paragraph element having id = "p1". We also have box sizing set to border-box so we can include the padding and border in our elements total width and height. Again, you can add many classes at once using the add() method, or remove all classes using the remove() method. One of the methods is add() method. This page was last modified on Feb 20, 2023 by MDN contributors. For example, to add two classes at once, you would use the following: You can also add a class to a body element when any event occurs on the page. This is followed by what you want to change, which might be the color, background color, font size, and so on. When you bind a common handler for more elements that needs same functionality. When you visit a blog, you often see excerpts of articles first. To add a new class to the element assign the new class to the element's className property as a string. You can also do this with onclick, but lets take another approach here. If the CSS class exists, the method will remove the class and return false. Get all unique values in a JavaScript array (remove duplicates). }); So we need to write it in a JavaScript file, or in the HTML file inside a