Array.Add vs +=

Question

I\'ve found some interesting behaviour in PowerShell Arrays, namely, if I declare an array as:

$array = @()

And then try to add items to it

Answer 1

The most common idiom for creating an array without using the inefficient += is something like this, from the output of a loop:

$array = foreach($i in 1..10) { 
  $i
}
$array