call-chainer/dist/index.js

Combine a regular function and a class so that methods of the class become chainable properties of the function that get called automatically.

/* IMPORT */
/* MAIN */
const chainerBase = (Methods, fn, cloned) => {
    const methods = new Methods();
    const chain = (...args) => fn(methods, ...args);
    const keys = Object.keys(methods);
    const props = Object.getOwnPropertyNames(Object.getPrototypeOf(methods));
    const names = Array.from(new Set([...keys, ...props]));
    for (const name of names) {
        if (name === 'constructor')
            continue;
        const value = methods[name];
        if (typeof value !== 'function')
            continue;
        Object.defineProperty(chain, name, {
            get: () => {
                if (cloned) {
                    value.call(methods);
                    return chain;
                }
                else {
                    const clone = chainerBase(Methods, fn, true);
                    return clone[name];
                }
            }
        });
    }
    return chain;
};
const chainer = (Methods, fn) => {
    return chainerBase(Methods, fn, false);
};
/* EXPORT */
export default chainer;