qi.js

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console.log((function factorial(n){return ((n > 0) ? n * factorial(n-1) : n)})(10));

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console.log(0.1 + 0.2)

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var zero;
console.log(typeof(1 / zero + 1 / 0))

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(function(){
  var a = b = 3;
})();

console.log("a defined? " + (typeof a !== 'undefined'));
console.log("b defined? " + (typeof b !== 'undefined'));

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function foo1()
{
  return {
      bar: "hello"
  };
}

function foo2()
{
  return
  {
      bar: "hello"
  };
}

console.log(foo1());
console.log(foo2());

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(function() {
    console.log(1); 
    setTimeout(function(){console.log(2)}, 1000); 
    setTimeout(function(){console.log(3)}, 0); 
    console.log(4);
})();

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var hero = {
    _name: 'John Doe',
    getSecretIdentity: function (){
        return this._name;
    }
};

var stoleSecretIdentity = hero.getSecretIdentity;

console.log(stoleSecretIdentity());
console.log(hero.getSecretIdentity());

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var arr1 = "john".split('');
var arr2 = arr1.reverse();
var arr3 = "jones".split('');
arr2.push(arr3);
console.log("array 1: length=" + arr1.length + " last=" + arr1.slice(-1));
console.log("array 2: length=" + arr2.length + " last=" + arr2.slice(-1));

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var list = readHugeList();

var nextListItem = function() {
    var item = list.pop();

    if (item) {
        //process this item
        doSomething(item);
        
        // process the next item...
        nextListItem();
    }
};

nextListItem();

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