TypeScript Patterns for FAST

Modules

fast-element enables verbatimModuleSyntax, so type-only imports must use import type or the inline type qualifier:

import type { Notifier, Subscriber } from "./notifier.js";
import { type Constructable, isFunction } from "../interfaces.js";

Sub-entry-points expose focused APIs through the exports map:

import { twoWay } from "@microsoft/fast-element/two-way.js";
import { reactive } from "@microsoft/fast-element/state.js";