test/TTBasic/bind.js

//-------------------------------------------------------------------------------------------------------
// Copyright (C) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE.txt file in the project root for full license information.
//-------------------------------------------------------------------------------------------------------

function PropertyExists(obj, propName)
{
    return obj.hasOwnProperty(propName);
}

var val = 100;
function IncrVal()
{
    telemetryLog(`IncrVal:: ${this.val}  args.length : ${arguments.length}`, true);
    this.val++;
    return this.val + " " + arguments.length;
}

var fGlobalThis1 = IncrVal.bind();
var fGlobalThis2 = IncrVal.bind(this);
var fGlobalThis3 = IncrVal.bind(this, 50);

var fGlobalThisNull = IncrVal.bind(null);

var objWithVal1 = { val : 200 }
var fLocal1 = IncrVal.bind(objWithVal1);

var x = 20;
var y = 30;

function add()
{
    return this.x + this.y;
}

var o = { x: 5, y: 6};
var f = add.bind(o);

var f2 = new f();

WScript.SetTimeout(testFunction, 50);

/////////////////

function testFunction()
{
    telemetryLog(`global object 1 ${fGlobalThis1()}`, true);
    telemetryLog(`global object 1 ${fGlobalThis1(10,20)}`, true);
    telemetryLog(`global object 2 ${fGlobalThis2()}`, true);
    telemetryLog(`global object 2 ${fGlobalThis2(10,20)}`, true);
    telemetryLog(`global object 3 ${fGlobalThis3()}`, true);
    telemetryLog(`global object 3 ${fGlobalThis3(10,20)}`, true);

    telemetryLog(`global object null ${fGlobalThisNull(10,20)}`, true);

    telemetryLog(`local length ${fLocal1.length}`, true);
    telemetryLog(`Local object2 ${fLocal1(10)}`, true);

    telemetryLog(`Add Test ${add()}`, true);
    telemetryLog(`f Test ${f()}`, true);

    telemetryLog(`Proto Test ${add.prototype.isPrototypeOf(f2)}`, true);

    emitTTDLog(ttdLogURI);
}