(ban-untagged-todo) TODO should be tagged with (@username) or (#issue)
// TODO: foo
^^^^^^^^^^^^
    at [WILDCARD]a.ts:1:0

    hint: Add a user tag or issue reference to the TODO comment, e.g. TODO(@djones), TODO(djones), TODO(#123)
    help: for further information visit https://lint.deno.land/#ban-untagged-todo

(no-unused-vars) `add` is never used
function add(a: number, b: number): number {
         ^^^
    at [WILDCARD]a.ts:2:9

    hint: If this is intentional, prefix it with an underscore like `_add`
    help: for further information visit https://lint.deno.land/#no-unused-vars

Found 2 problems
Checked 1 file