Prevent button action from running on load?

[gouldingken]

I'm looking to use a button to set an input value when clicked. How do I ensure that button code is run when I click the button, but not on load?

I tried adding run=false to the js header, but that prevents running altogether.

const resetButton = view(Inputs.button("Reset"));

resetButton;

inputControl.value = 222;

[mbostock]

Set the required option to true.

const reset = view(Inputs.button("Reset", {required: true}));

This sets the initial value to undefined which will prevent the generator from resolving until the button is clicked, such that any code block referencing reset likewise will not until click.

[gouldingken]

Thanks - that works great. Although I realized that you also have to be careful with these code blocks rerunning based on other variables changing. But an easy workaround is to use an HTML button to ensure it only runs on click.