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I have webpack on a vanilla HTML5 page in my Rails app.

I've got the onClick handler defined in Webpack with:

$(document).ready(()=> {
  document.getElementById('add-card').onClick = () => {
    $('.ui.modal').modal('show');
  }
});

The button renders on the page as:

<a class="ui button" id="add-card">Click me</a>

Clicking it does nothing. However, within the console, I can see that the handler is defined:

document.getElementById('add-card').onClick
ƒ () {
    $('.ui.modal').modal('show');
  }

And when I execute it with document.getElementById('add-card').onClick(), it works perfectly!

How do I get my onClick handler to fire when the element is clicked?

Edit: For the picky observers, I have jQuery installed and configured properly through Webpack.

I have webpack on a vanilla HTML5 page in my Rails app.

I've got the onClick handler defined in Webpack with:

$(document).ready(()=> {
  document.getElementById('add-card').onClick = () => {
    $('.ui.modal').modal('show');
  }
});

The button renders on the page as:

<a class="ui button" id="add-card">Click me</a>

Clicking it does nothing. However, within the console, I can see that the handler is defined:

document.getElementById('add-card').onClick
ƒ () {
    $('.ui.modal').modal('show');
  }

And when I execute it with document.getElementById('add-card').onClick(), it works perfectly!

How do I get my onClick handler to fire when the element is clicked?

Edit: For the picky observers, I have jQuery installed and configured properly through Webpack.

  • javascript
  • jquery
  • webpack
Share Improve this question edited Apr 23, 2018 at 19:35 Amin Shah Gilani asked Apr 23, 2018 at 19:20 Amin Shah GilaniAmin Shah Gilani 9,8967 gold badges44 silver badges85 bronze badges 5
  • 3 Why are you mixing jQuery and vanilla JS? – Andy Commented Apr 23, 2018 at 19:24
  • 3 onclick, not onClick – paul Commented Apr 23, 2018 at 19:24
  • Shouldn't it be $(document).ready()=> { on that first line there? looks like you got a syntax error with that extra "(" – Nancy Commented Apr 23, 2018 at 19:29
  • 2 @Rexa nope, .ready() accepts a callback. See: learn.jquery./using-jquery-core/document-ready – Amin Shah Gilani Commented Apr 23, 2018 at 19:33
  • @amingilani Ah, oops! I get it now! – Nancy Commented Apr 23, 2018 at 19:35
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2 Answers 2

Reset to default 6

You are mixing vanilla js and jquery. You can either do

$(document).ready(()=> {
    document.getElementById('add-card').addEventListener('click', () => {
        $('.ui.modal').modal('show');
    })
});

or you can do

$(document).ready(()=> {
    $('#add-card').on('click', () => {
        $('.ui.modal').modal('show');
    });
});

When you do document.getElementById('add-card') you get back a Node, not a jQuery object, so there is no onClick (although there is onclick, but it's better to use addEventListener). If you do $('#add-card') you get back a jQuery object, so you can use jQuery methods on it.

Replace onClick by onclick:

$(document).ready(()=> {
  document.getElementById('add-card').onclick = () => {
    $('.ui.modal').modal('show');
  }
});

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