A clickable button with a text label.
| Usage | Returns | ui.Button(label, onClick, disabled, style, imageUrl) | ui.Button |
| Argument | Type | Details | label | String, optional | The button's label. Defaults to an empty string. |
onClick | Function, optional | A callback fired when the button is clicked. The callback is passed the button widget. |
disabled | Boolean, optional | Whether the button is disabled. Defaults to false. |
style | Object, optional | An object of allowed CSS styles with their values to be set for this widget. Defaults to an empty object. |
imageUrl | String, optional | Optional image url. If provided, the button will be rendered as an image and the value text will be shown on mouse hover. Only data: urls and icons loaded from gstatic.com are allowed. |