mobx-keystone-mindreframer/src/action/isModelAction.ts

A MobX powered state management solution based on data trees with first class support for Typescript, snapshots, patches and much more

/**
 * @ignore
 * @internal
 */
export const modelActionSymbol = Symbol("modelAction")

/**
 * Returns if the given function is a model action or not.
 *
 * @param fn Function to check.
 * @returns
 */
export function isModelAction(fn: (...args: any[]) => any): boolean {
  return typeof fn === "function" && !!(fn as any)[modelActionSymbol]
}