Event subscription package to pass the non-parent-child value component (React)

List = const {} 

// the name of the event and the event function put into the event pool 
function   $ ON (name, FUNC) {
     IF (FUNC name ||!!) return ;
     IF ! ( Object.keys (List) .includes (name )) { 
        List [name] = FUNC; 
    } 
} 
// find the name of the search executed according to the event pool event 
function $ EMIT (name, ... Arg) {
     IF (name)! return ;
     IF (Object.keys (List). Includes (name)) { 
        List [name] (... Arg) 
    } 
} 

// execution is not complete and needs to be cleared after the event 
function $ OFF (name) {
     IF (! name)return;
    if(Object.keys(list).includes(name)){
        list[name]=null;
        delete list[name]
    }
}
export {
    $on,
    $emit,
    $off,
}