We Keep Coding

Using jQuery, can't add behavior on click to buttons created with innerHTML

I have some buttons and I added some behavior on click to all of them with jQuery and they worked fine, but now that those buttons are generated dynamically by changing the innerHTML of the div with a script, the behavior don't work anymore
Here is an example, like this every time I click any of the two buttons, it show an alert with the message 'clicked'.
Fiddle
$('.foo').on('click', function(){
alert('clicked');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="home">
<button class='foo' > Test </button>
<button class='foo' > Test </button>
</div>
But if I insert the buttons by changing the innerHTML of home with the button generate, it does not works anymore
Fiddle
$(".gen").on("click", function(){
$('.home').html(
"<button class='foo' > Test </button>" +
"<button class='foo' > Test </button>");
})
$('.foo').on('click', function(){
alert('clicked');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<button class="gen" > Generate </button>
</div>
<div class="home">
</div>
I really don't know what's going on

$('.foo') selects certain elements. .on() adds an event handler to only the selected elements. Any new elements with the "foo" class will not have that handler. Either add them manually to the new elements or better still use a delegate.
Basically, since your "foo" elements do not exist until after you click "generate", the call to .on() adds a handler to nothing.
Here's a solution using jQuery's delegate implementation
$(".gen").on("click", function(){
$('.home').html(
"<button class='foo' > Test </button>" +
"<button class='foo' > Test </button>");
})
$(document).on('click', '.foo', function(){
console.log('clicked');
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div>
<button class="gen" > Generate </button>
</div>
<div class="home">
</div>

Button Onclick only working on first element

When clicking button on elements, overlay box only works with first one, not the rest
I tried already to add 2 classes but not working as I read that that might be the issue, but I am not able to make it work properly.
<div class="container">
<input type="button" value="Contactar ahora" id="Overly" class="overly"
/>
</div>
<div id="ogrooModel" class="modalbox ogroobox" >
<div class="dialog">
<button title="Close" onClick="overlay()" class="closebutton" id="close">close</button>
<div style="min-height: 150px;">
</div>
</div>
</div>
<script>
//only javascript
document.getElementById("Overly").addEventListener("click", function(){
var e =document.getElementsByClassName("modalbox");
e[0].style.display = 'block';
}) ;
document.getElementById("close").addEventListener("click", function(){
var e =document.getElementsByClassName("modalbox");
e[0].style.display= 'none';
});
</script>
What exactly to change in that code so the rest of elements display the box after clicking on button?

You don't need onClick="overlay()" for your close button, as you are already binding it with a click event listener in your script.

use Jquery to click hyperlink

I am trying to create a jquery to click a hyperlink but nothing seems to be working.
HTML
<main id="main" class="main-content">
<div class="container">
<div class="warning" role="alert">
no avail
Show all
</div>
what I was trying
$(".warning a").click()
Any suggestions?

Note that jQuery-initiated "click" events will fire the event but will not cause navigation to occur.
Instead you can read the link's HREF attribute and directly set the window location:
// The click event:
$('a').on("click", function() {
console.log("Click event fired");
})
var demo1 = function() {
// This will trigger the click event, but will not navigate.
$(".warning a").click()
}
var demo2 = function() {
// This will navigate but will not trigger the click event. (If you need both to happen, trigger the click event first, and consider delaying the window location update if necessary.)
var url = $(".warning a").attr("href")
window.location = url;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<main id="main" class="main-content">
<div class="container">
<div class="warning" role="alert">
Show all
</div>
</div>
</main>
<!-- for demo: -->
<button onclick="demo1()">Won't work</button>
<button onclick="demo2()">Will work</button>

jQuery's .click() (without arguments) is a shortcut for .trigger("click"):
function(a,c) {
return arguments.length > 0 ? this.on(b, null, a, c) : this.trigger(b)
}
Therefore, it will not actually click the element, but just call the click event handlers attached to it, as you can see here:
const $link = $("a");
$link.on("click", () => {
console.log("Clicked? Not really...");
});
$link.click();
$link.trigger("click");
Show all
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
You need to get a reference to the actual DOM element and then call HTMLElement.click() on that:
$("a")[0].click();
Show all
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

You can user the vanilla click method:
document.querySelector('.warning > a').click()
// equivalent jquery
//$('.warning > a')[0].click()
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="warning" role="alert">
no avail
Show all
</div>

Whenever you select div class with hyperlink there you get array because you can have multiple hyperlinks so you need to add somthing like below
Code
$('.warning a')[0].click();
For reference link
Get working example for click event

If I need to redirect, I typically use window.location.href
window.location.href=$(".warning a").attr('href');

Fire button click event when there are multiple classes on an element

How would I fire a button click event when a particular button is pressed (in this case the accept button).
I've tried the following but with little success:
Javascript
$('.notification-expand .Request .active-item > .accept-button').click(function () {
alert("hello");
});
HTML
<div class="notification-expand Request active-item" style="display: block;">
<div class="notification-body"></div>
<br>
<p>
<button type="button" class="btn btn-success accept-button btn-sm">Accept</button>
</p>
<div class="row">
<div class="col-xs-6 expand-col">
<button type="button" class="btn btn-warning barter-button btn-sm">Barter</button>
</div>
<div class="col-xs-6 expand-col">
<button type="button" class="btn btn-danger reject-button btn-sm">Reject</button>
</div>
</div>
</div>
Fiddle here

You have error in your selector , it should look like this:
$('.notification-expand.Request.active-item .accept-button').click(function () {
alert("hello");
});

You need to concatenate all classes without spaces to catch your target button
$('button.accept-button', '.notification-expand.Request.active-item').click(function () {
alert("hello");
});
See the updated snippet
Notice the syntax of ".className1.className2" instead of ".className1 .className2"

should be something like:
$('button.accept-button').click(function(){ ... });
there is really no need to go down the whole list if this is the whole code
----edit----
so when there are more items but only 1 active(i guess) then just target the active-item class:
$('div.active-item button.accept-button').click(function(){ ... });

try
$('.accept-button', $('.notification-expand.active-item')).click(function () {
alert("hello");
});
or
$('.notification-expand.active-item')).find('.accept-button').click(function () {
alert("hello");
});

Just give the button an id and reference back to that.
HTML
<button id="btnSubmitData"> Ok Button </button>
JQuery Code
$('#btnSubmitData').click(function(){ ... });
You can also have multiple button Ids bind to the same event:
$('#btnAccept, #btnReject, #btnWarning').click(function () {
alert("hello");
});
Take a look at the updated Working Fiddle.

delegate jQuery toggle event to the rest of the document

I have a dropdown menu activated on click.
I use toggle to activate it when you click on the .hello_panel
HTML
<div class="container">
<div class="login_panel">
<div class="hello_panel">
<div class="hello_label">Hello </div>
<div class="hello_value">foofoo</div>
</div>
</div>
</div>
jQuery
$('.hello_panel').bind('click', function(){
$('.menu_popup').toggle();
})
if I click it it works fine, it does the show and hide effect when the .hello_panel
is clicked.
what I want is it to be shown if the .hello_panel is clicked and hidden back if when clicking anything else on the page except the .menu_popup

You can hide it whenever you click on the document
JavaScript
$(document).click(function () {
$('.menu_popup:visible').hide();
});
$('.hello_panel').bind('click', function (e) {
$('.menu_popup').toggle();
e.stopPropagation();
});
HTML
<div class="container">
<div class="login_panel">
<div class="hello_panel">
<div class="hello_label">Hello</div>
<div class="hello_value">foofoo</div>
</div>
</div>
</div>
<div style="display:none" class="menu_popup">menu_popup</div>
Demo
http://jsfiddle.net/6bo1rjrt/16/
Another way if you don't want to stopPropagation is passing a call back function that registers a once time click listener to that document to hide the menu
$('.hello_panel').bind('click', function () {
$('.menu_popup').show(function () {
$(document).one('click', function () {
$('.menu_popup:visible').hide();
});
});
});
Demo
http://jsfiddle.net/6bo1rjrt/17/