title: Can you enable TypeScript strict mode on a per file?
body: <p>Is it possible to enable strict checks done by the TSC compiler (i.e. <code>--strict</code> et al.) file-by-file, say using a special comment? I'm working on an established Angular codebase that mostly doesn't take advantage of TS, and I'd like to have at least my own code be neater without also having to fix everybody else's code by turning the flag on for the whole project.</p>