display object properties using for/in loop javascript

This question already has an answer here:

How do I loop through or enumerate a JavaScript object? 29 answers

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This has to do with notation and syntax

Object.property will give you undefined because you're accessing the property with the name property .

If you have this object:

var o = {
    property: "value",
    value: "foo"
};

o.property; // "value"
o["property"]; // "value" (equivalent)
o.value; // "foo"
o["value"]; // "foo" (equivalent)
o[o.property]; // "foo" no other notation possible

So in:

var Object = { x:1, y:2, z:3 };
for (property in Object) {
  console.log(Object.property);
};

The value of property is "x" , "y" and then "z" . But Object.property is equivalent to Object["property"] . Whereas Object[property] gives you Object["x"] etc.

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