Method _focus

packages/core/src/SpringValue.ts:898–909

Update the `animation.to` value, which might be a `FluidValue`

(value: T | FluidValue<T>)

  /** Update the `animation.to` value, which might be a `FluidValue` */
  protected _focus(value: T | FluidValue<T>) {
    const anim = this.animation
    if (value !== anim.to) {
      if (getFluidObservers(this)) {
        this._detach()
      }
      anim.to = value
      if (getFluidObservers(this)) {
        this._attach()
      }
    }
  }

  protected _attach() {
    let priority = 0