Tips for generating an input element using JavaScript without the need for it to have the ":valid" attribute for styling with CSS

My simple input in HTML/CSS works perfectly, but when I tried to automate the process by writing a JavaScript function to create multiple inputs, I encountered an issue. The input created with JavaScript is already considered valid (from a CSS ":valid" standpoint) while the one created in just HTML/CSS is not. I need the input to start off as invalid when it has no content, and then become valid once something is entered. You can view the code on this CodePen. In summary, I want to know how to make the JavaScript version behave the same way as the HTML/CSS version.

I have attempted using both .setCustomValidity(0) and .value = '', but encountered issues with both. The first solution causes the input to remain :invalid even after text is typed, while the second solution does not work at all.

javascripthtmlcss

Answer №1

The validation of the HTML input fails due to it being required but empty.

In the provided JavaScript code snippet, the required attribute is not set for the input element.

const input = document.createElement('input')
input.required = true;
document.body.appendChild(input);
console.log(document.querySelector(':invalid'));

Remember to include a proper <label> tag for the input field. This is crucial for ensuring accessibility for users with disabilities who rely on assistive technology.

The term currently used as placeholder should actually be a label. In Material Design, it is referred to as a floating label, which will hover above the input once it receives a value.

const placeholder = document.createElement('label');
…
input.id = 'theinput';
placeholder.setAttribute('for', 'theinput');

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Error Occurred: Angular View Not Loading

I created a new file named new.html to test navigation, but when I load the page View1.html should appear, instead I see a blank page. Below is the content of my new.html: <!DOCTYPE html> <html data-ng-app="demoApp"> <head> ...

javascripthtmlangularjs

Counting down in JavaScript until the desired MySQL datetime format is reached

I'm trying to display a countdown of hours and minutes to a date pulled from a MySQL database in the format 2010-09-24 11:30:12. I am not well-versed with dates in JavaScript, so any guidance would be greatly appreciated. Thank you. ...

javascriptmysqldatetimecountdown

How can I convert Double Quotes from (") to (&quot;) in TinyMce Editor?

While using TinyMce Editor, I have encountered a problem with double quotes breaking my code. In the HTML source of TinyMce, it displays " instead of &quot, causing issues in conversion. It seems that it is not converting " to " as it should, simi ...

javascriptrubytinymce

The process of generating a querystring from a form using jQuery is not functioning as expected

I am attempting to send an AJAX request, but I am facing an issue where the query string I am trying to construct turns out to be empty. <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>This project dem ...

javascriptjqueryquery-string

I'm encountering some issues trying to install next-auth in my project built with Next.js and React

I recently set up my Next.js project with React using yarn create next-app. However, I am facing an issue as the next-auth package is not installed in my project. Currently, my node version is LTS 16.15.1, yarn version is 1.22.18, and npm version is 8.9. ...

javascriptreactjsnext.js

How can you avoid Ajax calls from failing due to frequent requests?

Currently, I am utilizing ajax to retrieve some data. However, I have encountered an issue where the ajax request is triggered by hovering over a button, which could potentially result in multiple requests being sent and overwhelming the server, leading to ...

javascriptjqueryajax

On the second attempt, Firefox is able to drag the div element smoothly by itself

I have created a slider resembling volume controls for players using jQuery. However, I am facing an issue ONLY IN FIREFOX. When I drag the slider for the second time, the browser itself drags the div as if dragging images. The problem disappears if I clic ...

javascriptjqueryhtmlcss

Concealing an element by using parentElement.getElementsByClassName to set the display property to none

I am attempting to hide a button that generates a new element upon being clicked (to then be replaced by a delete button), but I'm struggling to set the display property to "none" when trying to target the same element using parentElement and then ret ...

javascripthtml

Preserve a data point without causing any alterations

I am working with a device that continuously sends values until it is stopped. These values are then saved inside an array. deviceMonitoring( device2 ){ // In this function, I populate the arrayTimestamp and then copy the first value. this.arrayElement = t ...

javascriptreactjsreact-native

Styling multiple divs using CSS

What is the method for attaching CSS to sp-copyright? <div class="container"> <div class="row"> <div id="sp-footer1" class="col-sm-12 col-md-12"> <div class="sp-column "> <span class="sp-copyright"> ...

htmlcss

Element eradicated by mysterious force - what is the reason behind this destruction?

I encountered a peculiar issue while working on a JS game demo. For some reason, one of the functions is unexpectedly deleting the container element (even though I didn't intend for it to do so). This function usually creates another element inside th ...

javascriptjquery

Styling the Next and Previous Page Links in your WordPress Website

Currently working on developing my own custom Wordpress theme and everything is going well, except for one little detail. I am trying to customize the styling of my next/previous page links so that the next page-link appears on the right side and the previ ...

phphtmlcsswordpress

Upon clicking the IconButton within the ImageListItemBar, reveal the image within a Material-UI Dialog

import * as React from 'react'; import Box from '@mui/material/Box'; import ImageList from '@mui/material/ImageList'; import ImageListItem from '@mui/material/ImageListItem'; import ImageListItemBar from '@mui/m ...

javascriptreactjsmaterial-uijsx

What is the best way to achieve this smooth scrolling animation on the page?

While browsing the website , I noticed a unique page scrolling effect that caught my eye. Unsure if they were using default bootstrap code or their own custom code, I was intrigued by how it worked. I attempted to find similar effects online but struggled ...

htmlvertical-scrolling

The CSS opacity property fails to function properly on Google Chrome

While it is functioning correctly on Firefox, there seems to be an issue with Chrome. I am attempting to have a card apply the opacity property when hovered over. Here is the HTML file: <div class="col mb-4"> <a class="text ...

htmlcssgoogle-chromebootstrap-4

Why is the response undefined when I resize an image twice using a JavaScript promise chain?

When I attempt to resize an image using the sharp library twice in my route handler, the result returned is undefined. Despite the resized images being displayed, it seems that calling image.resize and .toBuffer() multiple times is causing corruption in th ...

javascriptexpresssharp

How can I redirect to a different URL using Ajax when successful POST request is made?

Here is the code snippet I am working with: $.ajax({ type: "POST", url: "/pro_signup", data: { data: data, key: key }, dataType: "json", success: function (response) { document.getElementById("pu ...

javascriptajax

PHP code cannot be executed due to a problem with Angular routing

I stumbled upon this previous discussion during my search for assistance with a particular problem, but unfortunately there were no responses that could provide a solution. The issue I am facing involves submitting a form and expecting to receive a php va ...

javascriptphpangularjs

Is it possible for the Vue computed function to use destructuring assignment for the parameter even when no arguments are provided?

new Vue({ el: "#app", data: { value: "text", }, computed:{ all: function({value}){ return value } } }); <script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"> ...

javascriptvue.jsvuejs2

I am able to successfully receive accurate data in JSON format, however I am facing difficulties binding it to a jquery

I am struggling with integrating data fetched in JSON format using $.ajax into a table using jquery's datatable. Below is the JavaScript code I have been trying: $(document).ready(function () { $.ajax({ type: "POST", url: "Result.aspx/getUser ...

javascriptjqueryjsonajax