模块的当前状态。 将是以下之一:

      The current status of the module. Will be one of:

      • 'unlinked': has not yet been called.

      • 'linking': has been called, but not all Promises returned by the linker function have been resolved yet.

      • 'linked': The module has been linked successfully, and all of its dependencies are linked, but module.evaluate() has not yet been called.

      • 'evaluating': The module is being evaluated through a module.evaluate() on itself or a parent module.

      • 'evaluated': The module has been successfully evaluated.

      • 'errored': The module has been evaluated, but an exception was thrown.

      Other than 'errored', this status string corresponds to the specification's Cyclic Module Record's [[Status]] field. 'errored' corresponds to 'evaluated' in the specification, but with [[EvaluationError]] set to a value that is not undefined.