testDirectProxySetArray1.js

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// Assigning to a missing array element (a hole) via a proxy with no set handler

// calls the defineProperty handler.

function test(id) {

    var arr = [, 1, 2, 3];

    var p = new Proxy(arr, {

        defineProperty(t, id, desc) {

            hits++;

            assertEq(desc.value, "ponies");

            assertEq(desc.enumerable, true);

            assertEq(desc.configurable, true);

            assertEq(desc.writable, true);

            return true;

});

    var hits = 0;

    p[id] = "ponies";

    assertEq(hits, 1);

    assertEq(id in arr, false);

    assertEq(arr.length, 4);

test(0);

test(4);

test("str");