throw <expression>;

function divide(a, b) {
    if (b == 0) {
        throw "divide by zero";
    }
    return a / b;
}

try {
    print(divide(10, 0));
} catch (e) {
    print("caught:", e);   // caught: divide by zero
}

function fetch_user(id) {
    if (id == null) {
        throw { code: "BAD_INPUT", message: "id is required" };
    }
    // ...
}

try {
    fetch_user(null);
} catch (e) {
    print(e.code, "-", e.message);   // BAD_INPUT - id is required
}

ফাংশন divide(a, b) {
    যদি (b == 0) {
        নিক্ষেপ "divide by zero";
    }
    ফেরত a / b;
}