well-known.js - mozsearch

Enable keyboard shortcuts

/* Any copyright is dedicated to the Public Domain.

 * http://creativecommons.org/licenses/publicdomain/ */

var names = [

    "isConcatSpreadable",

    "iterator",

    "match",

    "replace",

    "search",

    "species",

    "hasInstance",

    "split",

    "toPrimitive",

    "unscopables",

    "asyncIterator"

];

for (var name of names) {

    // Well-known symbols exist.

    assertEq(typeof Symbol[name], "symbol");

    // They are never in the registry.

    assertEq(Symbol[name] !== Symbol.for("Symbol." + name), true);

    // They are shared across realms.

    if (typeof Realm === 'function')

        throw new Error("please update this test to use Realms");

    if (typeof newGlobal === 'function') {

        var g = newGlobal();

        assertEq(Symbol[name], g.Symbol[name]);

    // Descriptor is all false.

    var desc = Object.getOwnPropertyDescriptor(Symbol, name);

    assertEq(typeof desc.value, "symbol");

    assertEq(desc.writable, false);

    assertEq(desc.enumerable, false);

    assertEq(desc.configurable, false);

if (typeof reportCompare === "function")

    reportCompare(0, 0);