Don't use explicit const in global scope of JavaScript

Global scope should be exploited as little as possible, although if exploited too much (relatively) it's referred to "global pollution" . But if it happened you had no choice, do but just not this way :

const f = {
    namespace: "NS_F"
}
f // {namespace: 'NS_F'}
// let's garbage collect it :
f = null; // Assignment to constant variable
// SOLUTION is to swap CONST with LET, although...

... Although if you a OKAY to garbage collect it as soon as job is done, choose this run-to-completion (functional) approach :

// function declaration
function f () {
    return {namespace: "NS_F"}
}
f() // {namespace: 'NS_F'}
// run the following separately :
f = null;
// run the following separately :
f() // f is not a function
// Hooray !

Nearly best solution is to use weakSet(s) or weakMap(s) – read this

Thanks & see in the next one !