validatable/src/validators/block.ts

A library for synchronous and asynchronous input validation.

export interface BlockOptions {
  block?: () => boolean | Promise<boolean>;
}

export function block (value: any, options: BlockOptions = {}): boolean {
  if (!options) return false;

  let { block } = options;
  if (block) {
    return block.call(this, value, options);
  }
  return false;
}