Math.max() and Math.min() on undefined entry

Let's assume that we want to execute Math.max() or Math.min() on a undefined value:

javascript
let x;
let y = 7;

Math.min(x, y);
// NaN

Math.max(x, y);
// NaN

We could use the nullish coalescing operator (ES2020) to assign a default value to a variable. Example:

javascript
let x;
let y = 7;

Math.min(x ?? 0, y);
// 0

Math.max(x ?? 0, y);
// 7