In this blog post, we’ll explore some of the most common data types in PowerShell, providing you with a clear understanding of each type, along with practical examples to illustrate their use. From integers and strings to arrays and hash tables, we’ll cover everything you need to know to get started with PowerShell scripting. So, let’s dive in and demystify these essential components of PowerShell!
Integer
Represents whole numbers without any fractional component.
[int]$integerVariable = 10.3
Write-Output $integerVariable # Output: 10
Float and Double
Represent numbers with fractional components. Floats are single precision (7 digits), while doubles are double precision (15 – 16 digits).
[float]$floatVariable = 10.56797405930975037057340570
[double]$doubleVariable = 10.56797405930975037057340570
Write-Output $floatVariable # Output: 10.56797
Write-Output $doubleVariable # Output: 10.5679740593097
Decimal
Used for high-precision arithmetic, especially useful in financial calculations.
[decimal]$decimalVariable = 123.4567890123456789012345678
Write-Output $decimalVariable # Output: 123.4567890123456789012345678
String
Sequences of characters used to represent text.
[string]$stringVariable = "Hello, World!"
Write-Output $stringVariable # Output: Hello, World!
Boolean
Represents true or false values for logical operations.
[bool]$booleanVariable = $true
Write-Output $booleanVariable # Output: True
DateTime
Represents date and time values.
[datetime]$dateVariable = Get-Date
Write-Output $dateVariable # Output: Current date and time
Array
Collections of items of the same or different types stored in a single variable.
[array]$arrayVariable = @(1, 2, 3, 4, 5)
Write-Output $arrayVariable # Output: 1 2 3 4 5
HashTable
Collections of key-value pairs, similar to dictionaries in other programming languages.
$hashTable = @{
"Key1" = "Value1"
"Key2" = "Value2"
}
Write-Output $hashTable["Key1"] # Output: Value1
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