JuniorTheoryCommon

What does tsc report for this program?

TypeScript

function area(w: number, h: number) {
    return w * h;
}
console.log(area(3));

An error: 2 arguments are expected, but 1 is passed

Expecting NaN, as in JavaScript: tsc checks the number of arguments against the signature and reports error TS2554 before the program runs.
Expecting a missing argument to become 0: TypeScript fills in nothing, and only ? or a default value such as h = 1 lets a caller leave it out.

How would you change area so that area(3) compiles and the missing side counts as 1?
What does tsc report for the call area(3, 4, 5)?

JuniorTheoryCommon

TypeScript

function area(w: number, h: number) {
    return w * h;
}
console.log(area(3));

An error: 2 arguments are expected, but 1 is passed

Expecting NaN, as in JavaScript: tsc checks the number of arguments against the signature and reports error TS2554 before the program runs.
Expecting a missing argument to become 0: TypeScript fills in nothing, and only ? or a default value such as h = 1 lets a caller leave it out.

How would you change area so that area(3) compiles and the missing side counts as 1?
What does tsc report for the call area(3, 4, 5)?