Updated answer for Angular CLI v6.x, 7.x, 8.x :
ng lint <project-name> --fix
where <project_name> is the "name:" from package.json
- answer for Angular CLI v1.x -
ng lint -fix
- Original answer below -
tslint , . , , let → const, "" → ' ..
npx tslint src*.ts --fix
-fix let → const . , .