Function assertDefined

packages/core/src/util/assert.ts:103–107

(actual: T | null | undefined, msg: string)

}

export function assertDefined<T>(actual: T | null | undefined, msg: string): asserts actual is T {
  if (actual == null) {
    throwError(msg, actual, null, '!=');
  }
}

export function throwError(msg: string): never;
export function throwError(msg: string, actual: any, expected: any, comparison: string): never;