stigmergic.js

function* Stigmerge() {
	const stage = {
		fun: 'return "Welcome to " + a',
		params: ['a'],
		payload: ['wtf']
	}
	while(true) {
		if (stage.params === 'stop') return 'Thx for watching';

		const worker = new Function(...stage.params, stage.fun)
		stage.result = worker(...stage.payload)

		const [nextparams, nextfun, nextdata] = yield stage.result;

		stage.fun = nextfun;
		stage.params = nextparams;
		stage.payload = nextdata;
	}
}

const stigmerge = Stigmerge()

console.log(stigmerge.next().value);
console.log(stigmerge.next([ ['d', 'a', 'n', 'u'], 'return (d + ( a / n ) * u)', [ 20, 800, 2, 1 ] ]).value)
console.log(stigmerge.next([ ['l', 'a', 'd', 'n', 'o'], 'return (l * a * d * n * o + 300)', [ 1, 2, 3, 4, 5 ] ]).value)
console.log(stigmerge.next(['stop']).value)

// Output:
//	Welcome to wtf
//	420
//	420
//	Thx for watching