Function typeCheckConfig

src/js/util/index.js:147–161

(componentName, config, configTypes)

};

const typeCheckConfig = (componentName, config, configTypes) => {
  Object.keys(configTypes).forEach((property) => {
    const expectedTypes = configTypes[property];
    const value = config[property];
    const valueType = value && isElement(value) ? "element" : toType(value);

    if (!new RegExp(expectedTypes).test(valueType)) {
      throw new Error(
        `${componentName.toUpperCase()}: ` +
          `Option "${property}" provided type "${valueType}" ` +
          `but expected type "${expectedTypes}".`
      );
    }
  });
};

const isVisible = (element) => {
  if (!element) {