'const enum' statements are neither described, nor even included into the grammar section. https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#1.7 https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#a7-enums
'const enum' statements are neither described, nor even included into the grammar section.
https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#1.7
https://github.com/Microsoft/TypeScript/blob/master/doc/spec.md#a7-enums