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Example1:
Note 2: The comma is also used so separate items in an array {0,-30}
Example2:
To create an array, we create a variable and assign the array. Arrays are noted by the “@” symbol. Let’s take the discussion above and use an array to connect to multiple remote computers: $strComputers = @(“Server1″, “Server2″, “Server3″)
So, which one is correct or what is the difference ?
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To create and initialize an array, assign multiple values to a variable. The values stored in the array are delimited with a comma and separated from the variable name by the assignment operator ( = ). The comma can also be used to initialize a single item array by placing the comma before the single item.
Array declaration syntax is very simple. The syntax is the same as for a normal variable declaration except the variable name should be followed by subscripts to specify the size of each dimension of the array. The general form for an array declaration would be: VariableType varName[dim1, dim2, ...
A common programming error is created because arrays start at index 0. Off-by-one errors can be introduced in two ways.
Example 2 uses the array cast syntax which allows a single element, for example, to be treated as an array:
$myList = @("Hello")
Essentially, it allows anything between the parenthesis to be treated as an array including the output from other commands:
$myArray = @(Get-Process Excel)
Alternatively you can just create an array by specifying a comma separated list:
$myArray = "hello", "world", "again"
(The curly brackets are not needed)
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