Some context on the term: > This is the lingo used in the compiler's source code, in the PRs and in the issues on GitHub. > When you have to infer the T from

Some context on the term: > This is the lingo used in the compiler's source code, in the PRs and in the issues on GitHub. > When you have to infer the T from a MappedType<T>, you are inverting the action of the MappedType. There is a dedicated part in the compiler for doing that. Source: https://www.reddit.com/r/typescript/comments/1elj65m/comment/lgwjwn5 https://www.reddit.com/r/typescript/comments/1elj65m/comment...