handsontable/validators/numericValidator/numericValidator.mjs

Handsontable is a JavaScript Data Grid available for React, Angular and Vue.

import { isNumeric } from "../../helpers/number.mjs";
export const VALIDATOR_TYPE = 'numeric';

/**
 * The Numeric cell validator.
 *
 * @private
 * @param {*} value Value of edited cell.
 * @param {Function} callback Callback called with validation result.
 */
export function numericValidator(value, callback) {
  let valueToValidate = value;
  if (valueToValidate === null || valueToValidate === undefined) {
    valueToValidate = '';
  }
  if (this.allowEmpty && valueToValidate === '') {
    callback(true);
  } else if (valueToValidate === '') {
    callback(false);
  } else {
    callback(isNumeric(value));
  }
}
numericValidator.VALIDATOR_TYPE = VALIDATOR_TYPE;