The variable Key being added to the object

It's basically the exact same thing as a normal variable, except that it's within an object and assigned to that object. I'll give you some examples that hopefully explain it a little bit.

var first_name = "Sam"; /* This creates a variable called first_name, with a value of "Sam" */

console.log(first_name); /* This logs the value of first_name to the console. "Sam" is what would be shown */


/* It's the same concept with objects */


var me = { /* This starts the creation of an object named me */

    first_name: "Sam" /* This creates a property(a.k.a. variable) called first_name with the value of "Sam". It just looks a little different. */

} /* This ends the creation of the object */

console.log(me.first_name); /* This logs to the console the value of the first_name property which belongs to the me object */

Not sure if this will help you but hopefully you get it.

Hi Tyson, hi Sam,

I wonder a similar thing: so the property first_name defined in the object is a string, right? I don't mean that the value of this property is a string, but the property itself is represented with a string, have I got this one right?

And the var key Tyson asked about is basically a variable, given a string value, which happens to be that same property string of first_name, right? So, console.log(me[key]) prints the same as console.log(me["first_name"]) and as console.log(me.first_name). I believe I got this last part right, but I'm not really sure about the previous definition part.

Sorry about the chaotic sentences :)

I hope that you'd give feedback so that everyone with the same question marks can see it :)

Cheers!