object-is.js - mozsearch

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/*

 * Any copyright is dedicated to the Public Domain.

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

*/

var list = [

    [1, 1, true],

    [0, 1, false],

    [3.5, 3.5, true],

    [0, 0, true],

    [0, -0, false],

    [-0, 0, false],

    [-0, -0, true],

    [true, true, true],

    [true, false, false],

    [false, false, true],

    [NaN, NaN, true],

    [NaN, undefined, false],

    [Infinity, -Infinity, false],

    [Infinity, Infinity, true],

for (var test of list) {

    assertEq(Object.is(test[0], test[1]), test[2])

var obj = {}

assertEq(Object.is(obj, obj), true);

assertEq(Object.is(obj, {}), false);

assertEq(Object.is([], []), false);

assertEq(Object.is(null, null, null), true);

/* Not defined parameters are undefined ... */

assertEq(Object.is(null), false);

assertEq(Object.is(undefined), true);

assertEq(Object.is(), true);

assertEq(Object.is.length, 2);