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Okay so in this video we're
going to talk about tuples. So
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let's say you want to create an
array of RGB colors, okay? RGB
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colors are three colors that
takes the form of numbers and
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that can be between 0 and 255.
So I can have something this, this
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and for example this, okay? So
if you want to type this
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correctly, yes, obviously
you're going to make that an
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array of numbers, okay? But by
doing that I can still add
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other values like this and
that's not exactly what I want
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so you can be more strict and
you can basically type every
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item of your array okay every
tuples so you can do something
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like this number number and
number and as you can see now
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it's not valid anymore as you
can see here I have six numbers
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but this is not assignable to
three numbers like this so by
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the that I'm forcing my array
to have only three cells that
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contains each a number okay and
you could for example make that
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a string if you want or
something else and you would
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have to do something like this
if you want it to compile okay
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and obviously you can send any
type okay you can create your
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own interfaces, your own types so
this is cool but be super
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careful because you still can
do something like this you can
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still do RGB. push and as you
can see here the push is
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offering me to push strings or
numbers and I can do for
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example this if I want okay and
then I can console log RGB
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and as you can see I now have
four values so be super careful
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because type script has no way
to know if it's still okay to
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do that or not okay but it can
be very useful if you don't
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intend to modify the value for
example here we are modifying
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the value but this can be very
useful if you for example don't
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intend to modify the value for
example if you make that
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read only, well you cannot push
an more so that's cool and the
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type will always be good. Okay?
Um all right so that's pretty
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much about tuples. I hope it's
clear and see you on the next
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one.