Properties and Methods
We explore properties and methods and find their relationship to variables and functions.
Video Transcript
00:00Until now we worked with with our objects and we kind of assumed that these
00:06variables that we created are variables and and it's not a bad assumption but
00:11there's a small difference between a variable that we defined right here
00:15let's say for example we define here a variable which we'll call ID which I
00:22your ID would be a string let's say and it would be just some random ID right
00:28let's say that's an ID and if we create our object and create a new equals new
00:39object open close bracket now if we create if we added our ID a new ID into
00:47our object we're gonna give it a new ID and call it Ben's ID and it it's true
00:56this is a type of string and this is a type of string right if you get try to
01:02think what is the difference between them the difference is very minute but
01:06it's a big one the difference between a variable which this is a variable and
01:10this is a property a property is called a property because it belongs to the
01:15object is a property a type of variable it is yeah but it's a variable that
01:20belongs to an object and it's you know it's one of those terminologies that
01:25it's important to know them just because as you read different books or
01:30you read things online or maybe Adobe helped files and so on sometimes they'll
01:36use variables sometimes they'll use properties but for most scenarios it's
01:42exactly the same thing the only time where you really care about it is when
01:45you're actually a property you know the property belongs to an object well a
01:49variable doesn't necessarily belong to anything same thing for methods and
01:55functions so first of all we've seen functions before right we've seen how we
02:00created a function let's quick function here let's say we're gonna call it um
02:05hello and it would return a string and I'm gonna trace out here hello oh we want
02:20to return return hello right because we're returning a string we have our
02:26function hello now our function is kind of a standalone function and that's why
02:31it's called a function it doesn't belong to any object although on the other hand
02:38our object if you just type oh and click type dot we're gonna see that our
02:42object has a lot of different functions associated with it for example the two
02:47string function what does the two string function do it returns a string
02:52representation of our object and if I just grab our two string and I just
02:59trace out our two string we should be getting here a weird type of message
03:06which tells us object object which basically just says trace out an object
03:11that's what you get it's not a very useful method right now in our base
03:16object but it's a very very useful object very very useful method in other
03:22types of objects and this method is in everything in flash and if you're when I
03:29say everything I really mean everything and to prove that we could even go to
03:34our string so let's go to our ID dot to string them our string has even a two
03:44string and if I trace out our two string to string our ID to string we're
03:53going to get a value back over actually the value itself of our string now if
03:58you're wondering why does everything have a two string even when it's not
04:01relevant the reason is is because as we said before everything is an object in
04:05flash and actually all the base functions and properties of an object
04:10all this stuff that come inside of the object in default will be in every
04:15single variable and object every single object type in flash and everything is
04:20an object type in flash thus everything should have a two string method
04:24associated with it so we talked about properties and variables and the
04:30difference between them we talked about methods and functions and the
04:34differences between them and as we've done that we've noticed that objects and
04:39any object for that matter all come with a preset amount of predefined
04:45functions or methods more accurately