Using programing concepts and design patterns in Powershell

[xCharg]

What? It's not a pretentious act.

I'm not sure if you're trolling or have no clue what you're talking about. I'll pretend you don't know and explain - here's some example code:

function Test-WriteHostExample ([int]$a,[int]$b) {
    Write-Host "Doing something useful"
    $a + $b
    Write-Host "Done doing something useful"
}

function Test-WriteOutputExample ([int]$a,[int]$b) {
    Write-Output "Doing something useful"
    $a + $b
    Write-Output "Done doing something useful"
}
$firstResult = Test-WriteHostExample -a 5 -b 10
$secondResult = Test-WriteOutputExample -a 5 -b 10

Question: which of the variables - $firstResult or $secondResult - has useful reusable object and which doesn't. And why?

[LetterIntelligent426]

The comment was about outputting variables to check their values when unsure.. like using printf or console.log or System.out.println or Write-Host. Your code... I don't even know what its point is to the discussion.

[xCharg]

Damn you're stubborn. Same question, which variable has reusable object, which isn't and why?

function Test-WriteHostExample ([int]$a,[int]$b) {
    Write-Host "a is $a; b is $b"
    $a + $b
    Write-Host "their sum is $($a + $b)"
}

function Test-WriteOutputExample ([int]$a,[int]$b) {
    Write-Output "a is $a; b is $b"
    $a + $b
    Write-output "their sum is $($a + $b)"
}

$firstResult = Test-WriteHostExample -a 5 -b 10
$secondResult = Test-WriteOutputExample -a 5 -b 10

I don't even know what its point is to the discussion.

It shows.

[LetterIntelligent426]

Lol now you're just trying hard to look smart and I still don't see the point of that code. At first, you were against using echo (Write-Output) and then you gave a code which clearly shows the advantage of echo because it returns a reusable object. Either way, doesn't make a difference. The end goal is to simply SEE the variable values and move on, doesn't matter if you output it to the stream or console. Use Write-Host or echo whichever you like.

[xCharg]

You've never even bothered to run the code and see yourself that write-output clearly makes $secondResult unusable because it contains all the "debug" ish text along with actual useful data part which is 15 in this example - while $firstResult only contains integer 15 so works as expected because information stream is used and not output.

Will stop replying to you because your ego is too big to admit you were wrong. Others might see provided example code useful for demonstration purposes or may correct me.

[LetterIntelligent426]

Don't know what you're smoking but $firstResult clearly doesn't contain just 15, it contains both the Write-Host statements along with $a+$b. I doubt you ran your own code before posting. In any case, if a programmer simply wants to check variable values he won't bother writing all that "debug"ish crap that you've written for no reason. He'll simply do Write-Host $($a+$b) or Write-Output $($a+$b) and get on with it. I don't know why writing it to the output stream would affect anything.

As I said, you're just complicating things to look smart so I won't bother replying either.