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can also just provide the function
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itself
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4.01
I can say function and then in between
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these curly braces I can specify exactly
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5.82
what code should run when the form is
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4.41
submitted by providing this anonymous
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4.08
function instead using this anonymous
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5.28
function as the value of the on submit
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property of this form and so now what
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5.1
I'd like to do is somehow get access to
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4.35
whatever the user typed into the input
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4.29
field whatever the user's name happens
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4.14
to be and so I could get the input field
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5.49
by a document dot query selector input
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5.88
and that would work this time but we'll
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want to start to be a little bit careful
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because on this page there are multiple
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3.18
different input elements as an input
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3.54
element here for typing in the name and
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5.16
a second input element here for telling
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4.86
me giving me a button where I can submit
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4.08
this particular HTML form and so what I
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4.5
probably want to do is be a little bit
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4.44
more specific and it turns out that
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4.41
inside of query selector I can use all
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4.53
of the standard ways in CSS that we
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5.04
could select for a particular element so
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in CSS if you'll recall we had the
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ability to run CSS and just say style
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4.95
all the h1 or we could say style all the
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4.29
things with this particular ID or with
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3.93
this particular class and document our
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4.2
query selector works the same way that I
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4.41
can say document query selector and pass
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in a tag to say like get me the h1
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4.8
element or get me the button or get me
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3.99
the form but if there are multiple h1
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3.54
elements are multiple buttons and
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3.21
multiple forms I can be more specific
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2.28
than that
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3.9
if for example an element has an ID in
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5.43
which case I can say document query
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4.56
selector and then in quotation marks the
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hash mark and then the name of the ID to
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4.35
say get me the element with that
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3.75
particular ID again using the exact same
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5.4
syntax that CSS uses if I want to apply
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a particular set of styles to only one
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5.64
element that only has one ID likewise
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5.49
two I can say document query selector
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4.92
and then use dot followed by the name of
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4.41
a class if there's a particular
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3.93
particular class of elements and I want
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4.5
to just get one of those and to say get
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4.53
me an element that has this particular
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4.5
class in order to manipulate it as well
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4.23
so the same types of syntax that we
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4.23
could use in CSS for trying to reference
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and get at a particular HTML element we
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can do the same thing here with document
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query so
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to go ahead and try and get a particular
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element based on its tag name based on
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this ID or based on its class and it was
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for that reason that inside of the HTML
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5.7
page for my input I gave the input an
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idea of name I wanted some way to be
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able to uniquely reference it and I can
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uniquely reference it not by input but
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by pound name where I can say get me the
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element that has an ID of name and that
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is the element that I would like to
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3.619
extract inside of my JavaScript code
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5.041
once I have that HTML element what I
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want is like what the user actually
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typed into that input field and it turns
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4.05
out that if you have an input field in
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HTML I can get access to what the user
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typed in by accessing its value property
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4.921
value is a property that fur that refers
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to what it is the user actually typed in
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so I can say dot value and I'm going to
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go ahead and save that inside of a
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variable so I could say something like
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4.2
let name equal whatever the user typed
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in but if I'm not going to reassign name
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to something else inside of this
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function inside of this function I'm
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really going to get the name once and
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I'm not gonna change it inside of the
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function so I can use a constable
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instead that would be better designed to
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3.51
say I have a constant variable called
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name which is equal to document query
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selector get me the element whose ideas
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name and get access to its value and now
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I can display an alert I can alert
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something like in backticks hello comma
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and then using the dollar sign curly
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4.5
brace syntax I can say plug in the name
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