Function getSprings

packages/core/src/Controller.ts:512–533

(
  ctrl: Controller<Lookup<any>>,
  props?: OneOrMore<ControllerUpdate<State>>
)

 * until they're given to `setSprings`.
 */
export function getSprings<State extends Lookup>(
  ctrl: Controller<Lookup<any>>,
  props?: OneOrMore<ControllerUpdate<State>>
) {
  const springs = { ...ctrl.springs }
  if (props) {
    each(toArray(props), (props: any) => {
      if (is.und(props.keys)) {
        props = createUpdate(props)
      }
      if (!is.obj(props.to)) {
        // Avoid passing array/function to each spring.
        props = { ...props, to: undefined }
      }
      prepareSprings(springs as any, props, key => {
        return createSpring(key)
      })
    })
  }
  setSprings(ctrl, springs)
  return springs
}

/**
 * Tell a controller to manage the given `SpringValue` objects