ladybird/Libraries/LibJS/Tests/typeof-basic.js

load("test-common.js");

try {
    assert(typeof "foo" === "string");
    assert(!(typeof "foo" !== "string"));
    assert(typeof (1 + 2) === "number");
    assert(typeof {} === "object");
    assert(typeof null === "object");
    assert(typeof undefined === "undefined");

    var iExist = 1;
    assert(typeof iExist === "number");
    assert(typeof iDontExist === "undefined");

    var calls = 0;
    Object.defineProperty(globalThis, "foo", {
        get() {
            calls++;
        },
    });
    assert(typeof foo === "undefined");
    assert(calls === 1);

    console.log("PASS");
} catch (e) {
    console.log("FAIL: " + e);
}