HI
3.00

Expected output:
function padLeft(value: string, padding: any) {
    if (typeof padding === "number") {
        return Array(padding + 1).join(" ") + value;
    }
    if (typeof padding === "string") {
        return padding + value;
    }
    throw new Error(`Expected string or number, got '${padding}'.`);
}

console.log(padLeft("Hello world", 4));      // returns "   Hello world"
console.log(padLeft("Hello world", "hello ")); // returns "hello Hello world"