r-ninja/internals.js

r-ninja watches for changes in JSX expressions and updates UI with very less glue code.

import { Watcher } from "./watcher";
export const internals = {
    ROOT: Watcher.ROOT,
    models: [],
    expressions: (watcher = Watcher.ROOT) => {
        var _a;
        if (!watcher.isActive) {
            return [];
        }
        return [
            ...(watcher.expressions || []),
            ...(((_a = watcher.children) === null || _a === void 0 ? void 0 : _a.map(w => internals.expressions(w)).flat()) || [])
        ];
    },
    getExpression: (expression) => {
        expression = expression.toLowerCase();
        return internals.expressions().filter(w => {
            const expr = w.fn.toString().substring(6);
            if (expr.toLowerCase().indexOf(expression) >= 0) {
                return w;
            }
        }).map((w) => {
            return {
                expression: w.fn,
                value: w.last
            };
        });
    }
};