File

Check if the input value is a file.

The validation rule requires a value to run.

Example

src/app/posts/controllers/create-post.ts

// ...
createPost.validation = {
  rules: {
    title: ["required"],
    image: ["required", "file"],
  },
};

It works also if the input is an array of files:

src/app/posts/controllers/create-post.ts

// ...
createPost.validation = {
  rules: {
    title: ["required"],
    images: ["required", "file"],
  },
};