An easier to use console.log
const tag = (tag, param) => {
console.log(tag, param);
return param;
};
const foobar = tag('foobar', tag('foo', 100 * tag('bar', 500)));
console.log('foobar is: ', foobar);
//>> bar 500
//>> foo 50000
//>> foobar 50000
//>> foobar is: 50000