SOURCE

const counter =0
function logCount() {
  console.log(counter.num)
}
function count() {
  counter.num++
}
let activeEffect;

function wrapper(fn){
    const wrapped=function(...args){
        activeEffect=fn
        fn(...args)
    }
    return wrapped
}
activeEffect = logCount 

const wrapperLog=wrapper(logCount)
count()
wrapperLog()