Accessing any string type element inserted within multiple arrays

Suppose I have an array:

let x = [[["3"]]];

I can access easily to the inserted element without using object notation by simply writing

parseInt(x); // 3

But if we

let x = [[["a"]]];

There is no number within multiple arrays in x, so how can we access (“a”) directly in one step, like parseInt() for above situation. Is there any way, then suggest?


You can use toString function for that