I have a button that calls a javascript function using an event handler. For some reason, the event handler is being called twice.
Here is my button (I am using a php object to generate the code, that's why there are a lot of empty tags):
<button name="addToCart" value="" size="" onclick="" src="" class="addToCartButton" id="0011110421111" type="button" formtarget="_self" formmethod="post" formaction="" data-mini="true" width="" height="" placeholder="" data-mini="1" onkeypress="" >Add To Cart</button>
Here is my event handler:
$('.addToCartButton').click(function() {
alert("bob");
//addToCart($(this).attr("id"));
});
Here, I am getting the alert twice.
I have tried calling the function addToCart in the button's onclick property, but if I try it that way, I get this error:
TypeError: '[object HTMLButtonElement]' is not a function (evaluating 'addToCart(0011110421111)')
I have also tried event.preventDefault() and event.stopPropagation(), and neither worked.
Any ideas why this is happening, or what I can do to stop it from executing twice, or maybe why I am getting an error if I call the javascript function from onclick=""?
Maybe you are attaching the event twice on the same button. What you could do is unbind any previously set click events like this:
$('.addToCartButton').unbind('click').click(function() {
alert("bob");
//addToCart($(this).attr("id"));
});
This works for all attached events (mouseover, mouseout, click, ...)