code: function getMinFromProps(props, axis) {
    if (isPlainObject(props.minDomain) && props.minDomain[axis] !== undefined) {
      return props.minDomain[axis];
    }
    return typeof props.minDomain === "number" ? props.minDomain : undefined;
  }
docs: Returns the minDomain from props if it exists
  @param {Object} props: the props object
  @param {String} axis: the current axis
  @returns {Number|undefined} the minDomain based on props