JavaScript

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function tt() {
    if (this === window) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === window) console.log("TRUE"); else console.log("FALSE");
    };
    ttt();
}
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var tt = function () {
    if (this === window) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === window) console.log("TRUE"); else console.log("FALSE");
    };
    ttt();
};
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tt()
window.tt()
this.tt()
new tt()
new window.tt()
new this.tt()
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function tt() {
    if (this === window) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === window) console.log("TRUE"); else console.log("FALSE");
    };
    window.ttt(); // TypeError
}
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function tt() {
    if (this === window) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === window) console.log("TRUE"); else console.log("FALSE");
    };
    ttt.call(window);
}
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function tt() {
    "use strict";
    if (this === undefined) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === undefined) console.log("TRUE"); else console.log("FALSE");
    };
    ttt();
}
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var tt = function () {
    "use strict";
    if (this === undefined) console.log("TRUE"); else console.log("FALSE");
    var ttt = function () {
        if (this === undefined) console.log("TRUE"); else console.log("FALSE");
    };
    ttt();
};
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tt()
window.tt()
this.tt()
new tt()
new window.tt()
new this.tt()

Comments

2017-08-16
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