Why wouldn't a Read-Host input not get applied later in script?

First off I would like to say I am new to powershell scripting and am experimenting with some ideas. However I keep running into an error and not sure why. Any advice would be much appreciated.  I am doing this in a windows 2016 environment.

$domainname = (Read-Host "Enter name for domain.")


Install-WindowsFeature AD-Domain-Services -IncludeManagementTools

Import-Module ADDSDeployment

Install-ADDSForest -DomainName "$domainmane"
 
Set-TimeZone -Id "Mountain Standard Time"

I get:
Install-ADDSForest : Cannot bind argument to parameter 'DomainName' because it is an empty string.



I have also tried it as:

$domainname = Read-Host "Enter name for domain."

$domain = -domainname $domainname
 
Install-WindowsFeature AD-Domain-Services -IncludeManagementTools

Import-Module ADDSDeployment

Install-WindowsFeature ADDSForest
 
Set-TimeZone -Id "Mountain Standard Time"

However any time I attempt this I receive the following error:
Install-WindowsFeature : A parameter cannot be found that matches parameter name 'DomainName'.
At line:10 char:35
+ Install-WindowsFeature ADDSForest -DomainName "$domainmane"
+                                   ~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (:) [Install-WindowsFeature], ParameterBindingException
    + FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.Windows.ServerManager.Commands.AddWindowsFeatureCommand

Thank you in advance!
Darren BowdenAsked:
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footechCommented:
You have a misspelling there.
Install-ADDSForest -DomainName "$domainmane"
Mane instead of Name.  So should be
Install-ADDSForest -DomainName $domainname

Open in new window

(no need for the quotes around the variable - it's already a string)

Using the PowerShell ISE or other tools with tab completion can really help with avoidance of misspellings.
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
Putting Set-StrictMode -Version 2.0 as first statement can help with that. You get an error whenever an unitialized variable is used to get values.
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Darren BowdenAuthor Commented:
I ended up getting it to work by adding a echo -domainname at the end of the read-host. Thanks for the input!
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QlemoBatchelor, Developer and EE Topic AdvisorCommented:
footech is absolutely correct. "adding a echo -domainname at the end of the read-host" doesn't make any sense, sorry.
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Darren BowdenAuthor Commented:
Answer was not suggested, so the solution I found im giving as information for anyone else having the same problem.
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