error TS5055: Cannot write file 'tests/cases/compiler/a.js' because it would overwrite input file.
Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig
tests/cases/compiler/a.js(1,23): error TS8012: 'parameter modifiers' can only be used in a .ts file.
!!! error TS5055: Cannot write file 'tests/cases/compiler/a.js' because it would overwrite input file.
!!! error TS5055: Adding a tsconfig.json file will help organize projects that contain both TypeScript and JavaScript files. Learn more at https://aka.ms/tsconfig
==== tests/cases/compiler/a.js (1 errors) ====
class C { constructor(public x) { }}
~~~~~~
!!! error TS8012: 'parameter modifiers' can only be used in a .ts file.
|