Question

When using this.disabled=true; on a submit button's onclick attribute, does this prevent the form from getting submitted?

Answer 1

Setting `this.disabled = true;` on a submit button's `onclick` event handler does not inherently prevent the form from being submitted. Instead, it disables the button itself, preventing the user from clicking it again while the form is being processed, which can help avoid duplicate submissions.

The form submission will still take place unless there is additional code that prevents it, such as returning `false` from the `onclick` handler or calling `event.preventDefault()` on the event object.

Here's a simple example:

```html
<form id="myForm">
<input type="text" name="example" required>
<button type="submit" onclick="this.disabled=true;">Submit</button>
</form>
```

In this case, when the button is clicked, it will be disabled, and the form will still submit unless you specifically prevent that.

If you want to prevent the form from being submitted, you would need to include code like this:

```html
<form id="myForm" onsubmit="return false;">
<input type="text" name="example" required>
<button type="submit" onclick="this.disabled=true;">Submit</button>
</form>
```

In this example, the form submission is prevented by returning `false` from the `onsubmit` handler.