The text with its colour taken off — what the terminal would show on a screen with none.

Split on the escape rather than matched with a pattern: a regular expression for this needs a literal control character in it, which every linter with an opinion about control characters objects to, and it would be slower besides.

import { plain } from './terminal.ts';

plain(`${String.fromCharCode(27)}[33mhi${String.fromCharCode(27)}[0m`); // 'hi'