As someone who is just starting out with HTML, CSS, and JavaScript coding, I am faced with the task of adding multiple checkboxes to a single page that also contains multiple tabs.
I am seeking guidance on how to achieve a functionality where selecting or deselecting any checkbox will automatically update the checkboxes in all locations on the page. Can anyone provide instructions on how to accomplish this using HTML, CSS, and JavaScript?
Make sure to assign a common name to those checkboxes, and then implement the following JavaScript code:
function checkAll() {
var field = document.your_form_name.your_checkbox_name;
for (i = 0; i < field.length; i++)
field[i].checked = true ;
}
Hopefully this solution works for you!
<html>
<head>
<title>JavaScript - Implementing Check All Functionality in a Form</title>
<script>
var fieldName='chkName';
function selectall(){
var totalElements=document.frm.elements.length;
var allElements=document.frm.elements;
var nameArray=new Array();
var valueArray=new Array();
var j=0;
for(var k=0;k<totalElements;k++)
{
if(document.frm.elements[k].name==fieldName)
{
if(document.frm.elements[k].checked==true){
valueArray[j]=document.frm.elements[k].value;
j++;
}
}
}
checkSelect();
}
function selectCheck(obj)
{
var totalElements=document.frm.elements.length;
for(var k=0;k<totalElements;k++)
{
if(document.frm.elements[k].name==fieldName)
{
document.frm.elements[k].checked=obj;
}
}
selectall();
}
function selectallMe()
{
if(document.frm.allCheck.checked==true)
{
selectCheck(true);
}
else
{
selectCheck(false);
}
}
function checkSelect()
{
var totalElements=document.frm.elements.length;
var hasError=true;
for(var k=0;k<totalElements;k++)
{
if(document.frm.elements[k].name==fieldName)
{
if(document.frm.elements[k].checked==false)
{
hasError=false;
break;
}
}
}
if(hasError==false)
{
document.frm.allCheck.checked=false;
}
else
{
document.frm.allCheck.checked=true;
}
}
</script>
</head>
<body>
<form name="frm">
select all :<input type="checkbox" name="allCheck" onClick="selectallMe()">
<hr><br>
1 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
2 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
3 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
4 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
5 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
6 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
7 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
8 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
9 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
10 :<input type="checkbox" name="chkName" onClick="selectall()"><br>
</form>
</body>
</html>
Is there an optimal method for managing deep nested parent-child relationships in Feathers using the recommended Association Method? Let's say our data entries look like this: [ {"name": "Grandpa", "id": 1, "parent": null}, {"name": "Mom", " ...
I'm currently working on an Angular project and I need to remove the styling of the parent element by using the child element, based on certain conditions. It's important to note that the parent element has inline styling. My code looks somethin ...
I'm currently in the process of developing a web application that operates solely on one page and revolves around presenting various table data in grids. There are approximately 30 different tables stored in the database, with any of them being access ...
This code snippet is intended for a React Native Chat app. The structure of my data should look something like this: const chatData = [ { id: 1, name: 'John Doe', messages: [ {text: 'Hello', sentAt: 'time here' ...
Is there a way to access and display a website page hosted at this URL - , without encountering any authentication dialog box from my application on the same network? I have been unable to bypass the username and password entry request. I successfully imp ...
I need help displaying my texteditor content in a razor view. The content contains HTML tags and is saved in a database, but when I run my website it appears as a string value. Here is the value stored in the database: https://i.sstatic.net/gOV9h.jpg Now, ...
My Current Challenge I am currently attempting to place a marker on the map and calculate the distance between the marker and a fixed location on the map. If the distance exceeds 1000 meters, I want to display a modal indicating that the ...
I'm currently working on styling a webpage and facing a challenge. I am limited to editing only the CSS file without being able to touch the HTML code. Despite using !important and specificity, I am struggling to override some existing styles. How can ...
I have some code blocks that I want to emphasize. Currently, I am using prismjs for this purpose. However, when I try to highlight several code blocks, the page takes more than 5 seconds to load on my somewhat slow PC. Interestingly, if I remove the prism ...
I'm currently working through the latest Tuts+ tutorial on Angular 2 In the tutorial, the author references adding this script: <script src="node_modules/angular2/bundles/angular2.sfx.dev.js"></script> However, in the most recent beta re ...
I am currently working on a commodities quotes widget. I have already set up the 'Current' and '24-hour' divs, but I'm facing an issue where positive values are not displaying in green and negatives in red as intended. I have check ...
I have integrated an Angular NumericTextbox component from Syncfusion into my application. A problem we encountered is that when the input is clicked, it automatically gets selected. Is there a way to disable this behavior? Problem: https://gyazo.com/a72b ...
Is there a way to display the value of an input type text when using ajax for file upload? I have successfully implemented code to upload files to a directory called attachments_files, but I am facing an issue. How can I retrieve and echo the value from i ...
Hello everyone, I am new to this site so please forgive me if my question is not perfect. My app was working fine without any issues until today when I tried to run npm run dev. I didn't make any changes, just ran the command and received a strange er ...
While working on the contact section of my website, I encountered an issue. Every time I adjust the position of the textboxes and labels by 15em within the wrapper, a horizontal scroll appears. How can I move these elements without triggering the scroll ba ...
One of my current challenges involves utilizing jQuery to include a custom header in each AJAX request. $.ajaxSetup({ beforeSend: function (xhr) { xhr.setRequestHeader ("Authorization", "Basic " + btoa(user + ":" + sessionID)); }, }); My ...
Is there a method to adjust the height of an iframe in the y-axis so that the content properly fits within it? The challenge lies in finding solutions that work within the constraints imposed by modern CORS and Same Origin policies enforced by web browser ...
I've noticed that my website is no longer making the ajax call it used to make before I made some changes to my code. However, I can't seem to figure out what exactly I changed. The function call appears to be correct as it triggers the initial a ...
I'm currently in the process of working on a project for my introductory JavaScript and HTML course. I'm trying to create a feature that will convert text entered into a text box to all uppercase letters when a button is clicked. Here's what ...
I am working on an isomorphic app built in ES6 on the client side using the Babel transpiler. I would like my express server to also utilize the same ES6 syntax as the client code. Unfortunately, attempting to use require('babel/register') has n ...