hyperformula/es/interpreter/plugin/CountBlankPlugin.mjs

HyperFormula is a JavaScript engine for efficient processing of spreadsheet-like data and formulas

/**
 * @license
 * Copyright (c) 2025 Handsoncode. All rights reserved.
 */
import { EmptyValue } from "../InterpreterValue.mjs";
import { FunctionArgumentType, FunctionPlugin } from "./FunctionPlugin.mjs";
/**
 * Interpreter plugin containing MEDIAN function
 */
export class CountBlankPlugin extends FunctionPlugin {
  countblank(ast, state) {
    return this.runFunction(ast.args, state, this.metadata('COUNTBLANK'), (...args) => {
      let counter = 0;
      args.forEach(arg => {
        if (arg === EmptyValue) {
          counter++;
        }
      });
      return counter;
    });
  }
}
CountBlankPlugin.implementedFunctions = {
  'COUNTBLANK': {
    method: 'countblank',
    parameters: [{
      argumentType: FunctionArgumentType.SCALAR
    }],
    repeatLastArgs: 1,
    expandRanges: true
  }
};