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Hashtable in Windows PowerShell Scripts
What is a hashtables of objects in Windows PowerShell scripts?
✍: FYIcenter.com
A hashtables in Windows PowerShell is a data structure where pieces of data are stored in the structure as key-value members. The value of a member represents the data, and the key of a member provides a name for the data.
Hashtable keys must be unique strings. While hashtable values can be any types of data.
You can create a hashtable by listing objects using the @{...}syntax as shown below:
@{key1=value1;key2=value2;key3=value3;...}
For example, the following script creates a hashtable of 3 members and assign it to variable $p:
$p = @{"FirstName"="John";"LastName"="Smith";"Age"=40} "My profile:" $p
New key-value pairs can also be added to a hashtable using the Add() method:
$p = @{"FirstName"="John";"LastName"="Smith";"Age"=40} $p.Add("Email","john@smith.com") "My profile:" $p
You can access a member value of a hashtable with its key using the "." operation as shown below:
$p = @{FirstName="John";LastName="Smith";Age=40} "My profile:" " First Name: "+$p.FirstName " Last Name: "+$p.LastName " Age: "+$p.Age
You can also access a member value of a hashtable with its key using the "Item()" method:
$p = @{FirstName="John";LastName="Smith";Age=40} "My profile:" " First Name: "+$p.Item("FirstName") " Last Name: "+$p.Item("LastName") " Age: "+$p.Item("Age")
⇒ Loop Hashtable Members in Windows PowerShell Scripts
⇐ Loop Array Elements in Windows PowerShell Scripts
2016-10-29, 1625🔥, 0💬
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