JavaScript variable declaration test

1-variable.js

window.test = 'global test';
(function () {
    console.log(typeof test); // "undefined"
    var test = 'context test';
    console.log(test); // "context test"
})();
console.log(test); // "global test"

2-reorder.js

window.test = 'global test';
(function () {
    var test; // moved by interpreter
    console.log(typeof test); // "undefined"
    test = 'context test';
    console.log(test); // "context test"
})();
console.log(test); // "global test"