Formulas

• Visual
  • Arithmetic
  • Parentheses
  • Rounding
  • Presets
  • Choice Groups
  • Checkboxes
• JavaScript
• Remote (on your own server-side API)

Arithmetic

Group → Enable Formula

Parentheses (Nested Groups)

Deeper Groups compute before their parent(s). Therefore, Nested Groups act like parentheses. They have an operator unless they are the first formula item.

Rounding

Presets

Group → Formula Presets

To remove a preset, re-click the active preset button.

Choice Groups

Formulas use the selected Element Value.

Checkboxes

Internally, a Checkbox value is 1 or 0. This example multiplies that value by $5.00 (a "Hidden in Designer" Element) using a formula. Effectively, this is a no-code conditional form.

Alternatives to Formulas

The next document is about integrating JavaScript. Therefore, you can also write formulas like:

function ({ radius }) {
  return Math.PI * radius.value ** 2
}