Hi im new on js and honestly speaking we're just starting learning js on our school. What i want to do is once i already click it it will be reset and remove the class again. "myClass has a display none"
$(function() {
$("body").click(function() {
$(".parela").addClass('myClass');
});
});
You can use toggleclass
$(function() {
$("body").click(function() {
$(".parela").toggleClass('myClass');
});
});
Use toggleClass, so at every click it will be added/removed automatically
$(function() {
$("body").click(function() {
$(".parela").toggleClass('myClass');
});
});
You want to use toggleClass() which will toggle the class on and off depending on the click. note that for the demo below - I created the button that toggles the class on the button click.
Another way of doing it - since the only effect is to hide the element - is just .toggle() which toggles the display state without the use of the added class. The following snippet shows both methods.
$(function() {
$("#toggleButton").click(function() {
$(".parela").toggleClass('myClass');
});
$("#toggleButton2").click(function() {
$(".parela2").toggle();
});
});
.myClass{display:none}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>Using .toggleClass('myClass')</p>
<button type="button" id="toggleButton">clickMe</button>
<span class="parela"> Visible</span>
<hr/>
<p>Using just .toggle()</p>
<button type="button" id="toggleButton2">clickMe</button>
<span class="parela2"> Visible</span>
You can you use some sort of 'flag' variable to control the state.
You can name it whatever you want and make if statement to make decisions accordingly.
$(function() {
var flag = false;
$("body").click(function() {
if(!flag) {
$(".parela").addClass('myClass');
flag = true;
} else {
$(".parela").removeClass('myClass');
flag = false;
}
});
});
I have a <button> that is wrapped inside of a <div>. I want to be able to click the button without actually clicking on the <div> as well. The <button> needs to remain inside of the <div>.
Heres the code:
<div onclick='console.log("Div was clicked.")'>
This is the Div
<button onclick='console.log("Button was clicked.")'>Button</button>
</div>
When i click on the <div> console logs "Div was clicked.".
When i click on the <button> console logs "Button was clicked." AND "Div was clicked.".
How can i click on the <button> WITHOUT a click registering on the <div>?
Any alternatives/workarounds?
Thanks guys.
Add event.stopPropagation() in your button onclick handler.
<div onclick='console.log("Div was clicked.")'>
This is the Div
<button onclick='event.stopPropagation(); console.log("Button was clicked.")'>Button</button>
</div>
You can also check the target.id. Here's a small example using jQuery:
HTML:
<div id="parent">
This is the Div
<button onclick='console.log("Button was clicked.")'>Button</button>
</div>
jQuery:
$('#parent').click(function(e)
{
if (e.target.id == "parent") {console.log("Div was clicked.")}
});
Fiddle: http://jsfiddle.net/mrnLLvac/
Add the following JavaScript function:
function CancelMouseEvent (Event)
{
Event = Event ? Event : window.Event;
if (Event.stopPropagation) { Event.stopPropagation(); }
if (Event.preventDefault) { Event.preventDefault(); }
Event.cancelBubble = true;
Event.cancel = true;
Event.returnValue = false;
return false;
}
Now use this in HTML:
<button onclick='console.log("Button was clicked."); CancelMouseEvent(event);'>Button</button>
Usually, it is recommended to not use the older method of event binding to HTML. It is recommended to use addEventListener, that way your JS stays in your JS and your HTML is only HTML.
A simple example below:
<div id="wrap">
This is the Div
<button id="button">Button</button>
</div>
<script>
var wrap = document.getElementById('wrap');
wrap.addEventListener('click', handleClick, true);
function handleClick(e) {
e.stopPropagation;
if (e.target.id === 'button') {
// do stuff because button was clicked
console.log('button was clicked');
}
}
</script>
EDIT: why your code didnt work
Your code didn't work because events "bubble" up the DOM (they can also be "captured"...), in your case even if you clicked "button", the following events were triggered:
Button (target) === (bubbling up to its parent) === DIV (its event was also triggered).
Here is the JsFiddle
I have a button that will add a new header, textbox, and a link when it's click.
But when I click on the remove link. It's removes every new item that was added.
Html:
<div id='main'>
Top of Boby
<div id='main_1'>
<div>
<h3> Item</h3>
<input type="text" />
</div>
</div>
</div>
JS:
$(function() {
$('.AddItem').click(function() {
$('div#main_1').append("<div><h3>Item</h3><input type='text' class='remove_skill'/><a href=''>Remove</a</div>");
});
})
$(function() {
$('.remove_skill').click(function() {
$(this).remove();
});
})
2 issues..
You have never defined the class for the anchor. Add the class to the anchor
You need to remove the enclosing div and not the anchor. Use .closest
Also you need to delegate the event as the elements are being added dynamically
$('#main').on('click', '.remove_skill', function (e) {
e.preventDefault();
$(this).closest('div').remove();
});
Check Fiddle
The problem with the code you've posted is that no links exist at the moment you call $('.remove_skill').click, so you can't add event listeners to them.
I recommend a step-by-step approach. Create, add behaviour, append to the document.
$('.AddItem').click(function () {
var new_element = $('<div class="item"><h3>Item</h3><input type="text"/><a class="remove" href="#">Remove</a></div>');
new_element.find(".remove").click(remove_item);
$('div#main_1').append(new_element);
});
function remove_item() {
$(this).closest(".item").remove();
return false;
}
I recommend <a href="#"> for javascript-handled links.
Alternative solution using a closure:
$('.AddItem').click(function () {
var new_element = $("<div class="item"><h3>Item</h3><input type='text'/><a class="remove" href="#">Remove</a</div>");
new_element.find(".remove").click(function() {
new_element.remove();
});
$('div#main_1').append(new_element);
});
Your problem is that your "Remove" is in an 'a' tag. This causes the page to reload, and removing all of your previous changes.
Hello I have made a basic sticky notification that shows on my website, I am trying to make it so you can manually close it by clicking a button but it won't seem to work? Here is my code:
<script>
$(function() {
$("#closeBtn").click(function () {
$(".notification").fadeOut(500);
return false;
});
});
</script>
<div class="notification" id="success">
Message sent
<a href="#" id="closeBtn">
<div class="close">
<div class="closeTxt">X</div>
</div>
</a>
</div>
try using .on() for the elements created dynamically
$(document).on('click','#closeBtn',function() {
$(".notification").fadeOut(500);
return false;
});
Because the element is added to the DOM after page load, you need to use .on() instead of .click():
$(document).on('click', '#closeBtn', function (e) {
e.preventDefault();
$('.notification').fadeOut(500);
});
When the element is added Dynamically you have two choices.
function myFadeOut() {
$(".notification").fadeOut(500);
return false;
}
Using the on:
$(document).on('click', '#closeBtn', myFadeOut);
Or more clean, adding the click directly on the node when you generate it:
var $myNode = $('<div class="someNode"></div>');
$myNode.click( myFadeOut);
$(".foobar").append($myNode);
I want an event to fire client side when a checkbox is checked / unchecked:
$('.checkbox').click(function() {
if ($(this).is(':checked')) {
// Do stuff
}
});
Basically I want it to happen for every checkbox on the page. Is this method of firing on the click and checking the state ok?
I'm thinking there must be a cleaner jQuery way. Anyone know a solution?
Bind to the change event instead of click. However, you will probably still need to check whether or not the checkbox is checked:
$(".checkbox").change(function() {
if(this.checked) {
//Do stuff
}
});
The main benefit of binding to the change event over the click event is that not all clicks on a checkbox will cause it to change state. If you only want to capture events that cause the checkbox to change state, you want the aptly-named change event. Redacted in comments
Also note that I've used this.checked instead of wrapping the element in a jQuery object and using jQuery methods, simply because it's shorter and faster to access the property of the DOM element directly.
Edit (see comments)
To get all checkboxes you have a couple of options. You can use the :checkbox pseudo-selector:
$(":checkbox")
Or you could use an attribute equals selector:
$("input[type='checkbox']")
For future reference to anyone here having difficulty, if you are adding the checkboxes dynamically, the correct accepted answer above will not work. You'll need to leverage event delegation which allows a parent node to capture bubbled events from a specific descendant and issue a callback.
// $(<parent>).on('<event>', '<child>', callback);
$(document).on('change', '.checkbox', function() {
if(this.checked) {
// checkbox is checked
}
});
Note that it's almost always unnecessary to use document for the parent selector. Instead choose a more specific parent node to prevent propagating the event up too many levels.
The example below displays how the events of dynamically added dom nodes do not trigger previously defined listeners.
$postList = $('#post-list');
$postList.find('h1').on('click', onH1Clicked);
function onH1Clicked() {
alert($(this).text());
}
// simulate added content
var title = 2;
function generateRandomArticle(title) {
$postList.append('<article class="post"><h1>Title ' + title + '</h1></article>');
}
setTimeout(generateRandomArticle.bind(null, ++title), 1000);
setTimeout(generateRandomArticle.bind(null, ++title), 5000);
setTimeout(generateRandomArticle.bind(null, ++title), 10000);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section id="post-list" class="list post-list">
<article class="post">
<h1>Title 1</h1>
</article>
<article class="post">
<h1>Title 2</h1>
</article>
</section>
While this example displays the usage of event delegation to capture events for a specific node (h1 in this case), and issue a callback for such events.
$postList = $('#post-list');
$postList.on('click', 'h1', onH1Clicked);
function onH1Clicked() {
alert($(this).text());
}
// simulate added content
var title = 2;
function generateRandomArticle(title) {
$postList.append('<article class="post"><h1>Title ' + title + '</h1></article>');
}
setTimeout(generateRandomArticle.bind(null, ++title), 1000); setTimeout(generateRandomArticle.bind(null, ++title), 5000); setTimeout(generateRandomArticle.bind(null, ++title), 10000);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<section id="post-list" class="list post-list">
<article class="post">
<h1>Title 1</h1>
</article>
<article class="post">
<h1>Title 2</h1>
</article>
</section>
Just another solution
$('.checkbox_class').on('change', function(){ // on change of state
if(this.checked) // if changed state is "CHECKED"
{
// do the magic here
}
})
If your intention is to attach event only on checked checkboxes (so it would fire when they are unchecked and checked later again) then this is what you want.
$(function() {
$("input[type='checkbox']:checked").change(function() {
})
})
if your intention is to attach event to all checkboxes (checked and unchecked)
$(function() {
$("input[type='checkbox']").change(function() {
})
})
if you want it to fire only when they are being checked (from unchecked) then #James Allardice answer above.
BTW input[type='checkbox']:checked is CSS selector.
Is very simple, this is the way I use:
JQuery:
$(document).on('change', '[name="nameOfCheckboxes[]"]', function() {
var checkbox = $(this), // Selected or current checkbox
value = checkbox.val(); // Value of checkbox
if (checkbox.is(':checked'))
{
console.log('checked');
}else
{
console.log('not checked');
}
});
Regards!
$(document).ready(function () {
$(document).on('change', 'input[Id="chkproperty"]', function (e) {
alert($(this).val());
});
});
This is the solution to find is the checkbox is checked or not.
Use the #prop() function//
$("#c_checkbox").on('change', function () {
if ($(this).prop('checked')) {
// do stuff//
}
});
It can also be accomplished as below. When the checkbox is fired, the div
or control with #checkbox id is hiddden or is shown otherwise.
<script>
$('#checkbox').on('click',function(){
if(this.checked){
$('#checkbox').hide();
}else{
$('#checkbox').show();
}
});
</script>
Action taking based on an event (on click event).
$('#my_checkbox').on('click',function(){
$('#my_div').hide();
if(this.checked){
$('#my_div').show();
}
});
Without event taking action based on current state.
$('#my_div').hide();
if($('#my_checkbox').is(':checked')){
$('#my_div').show();
}
Try this "html-approach" which is acceptable for small JS projects
function msg(animal,is) {
console.log(animal, is.checked); // Do stuff
}
<input type="checkbox" oninput="msg('dog', this)" />Do you have a dog? <br>
<input type="checkbox" oninput="msg('frog',this)" />Do you have a frog?<br>
...
perhaps this may be an alternative for you.
<input name="chkproperty" onchange="($(this).prop('checked') ? $(this).val(true) : $(this).val(false))" type="checkbox" value="true" />`
Try this jQuery validation
$(document).ready(function() {
$('#myform').validate({ // initialize the plugin
rules: {
agree: {
required: true
}
},
submitHandler: function(form) {
alert('valid form submitted');
return false;
}
});
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.17.0/jquery.validate.js"></script>
<form id="myform" action="" method="post">
<div class="buttons">
<div class="pull-right">
<input type="checkbox" name="agree" /><br/>
<label>I have read and agree to the Terms of services </label>
</div>
</div>
<button type="submit">Agree</button>
</form>
the key is: use prop but not attr to query the checked status, e.g.
correct: jQuery('#my_check_tag').prop('checked') // return correct status
incorrect: jQuery('#my_check_tag').attr('checked') // always return undefined