colorizr/src/modules/invariant.ts

Manipulate colors like a boss

/**
 * Assert a condition and throw an error if false.
 *
 * @param condition - The condition to assert.
 * @param message - The error message if condition is false.
 * @throws Error with name 'colorizr' if condition is false.
 */
export function invariant(condition: boolean, message: string): asserts condition {
  if (condition) {
    return;
  }

  if (process.env.NODE_ENV !== 'production' && message === undefined) {
    throw new Error('invariant requires an error message argument');
  }

  const error = !message
    ? new Error(
        'Minified exception occurred; use the non-minified dev environment for the full error message and additional helpful warnings.',
      )
    : new Error(message);

  error.name = 'colorizr';

  throw error;
}