day3-throw.js

/*
Objective
In this challenge, we practice using throw and catch statements to work with custom error messages.

Task
Complete the isPositive function below. It has one integer parameter, a. If the value of a is positive, it must return the string YES. Otherwise, it must throw an Error according to the following rules:
- If a is 0, throw an Error with message = Zero Error.
- If a is negative, throw an Error with message = Negative Error.

Input Format
Locked stub code in the editor reads the following input from stdin and passes each value of a to the function as an argument:
The first line is an integer, n, denoting the number of times the function will be called with some a.
Each line i of the n subsequent lines contains an integer denoting some a.

Constraints
- 1 <= n <= 5
- -100 <= a <= 100

Output Format
If the value of a is positive, the function must return the string YES. Otherwise, it must throw an Error according to the following rules:
- If a is 0, throw an Error with message = Zero Error.
- If a is negative, throw an Error with message = Negative Error.
*/

function isPositive(a) {
    if (a > 0) {
        return "YES";
    } else if (a == 0) {
        throw new Error("Zero Error");
    } else {
        throw new Error("Negative Error");
    }
}