@wordpress/hooks/build-module/validateHookName.js

WordPress hooks library.

/**
 * Validate a hookName string.
 *
 * @param {string} hookName The hook name to validate. Should be a non empty string containing
 *                          only numbers, letters, dashes, periods and underscores. Also,
 *                          the hook name cannot begin with `__`.
 *
 * @return {boolean} Whether the hook name is valid.
 */
function validateHookName(hookName) {
  if ('string' !== typeof hookName || '' === hookName) {
    // eslint-disable-next-line no-console
    console.error('The hook name must be a non-empty string.');
    return false;
  }
  if (/^__/.test(hookName)) {
    // eslint-disable-next-line no-console
    console.error('The hook name cannot begin with `__`.');
    return false;
  }
  if (!/^[a-zA-Z][a-zA-Z0-9_.-]*$/.test(hookName)) {
    // eslint-disable-next-line no-console
    console.error('The hook name can only contain numbers, letters, dashes, periods and underscores.');
    return false;
  }
  return true;
}
export default validateHookName;
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