If($true) in Powershell-CodePudding

I've come across an If($True) statement in a script I'm working on, but I haven't been able to really tell what exactly that's doing. It seems that the script proceeds into the next block regardless, and I haven't found anything that'd cause it to NOT execute the next section (a Try/Catch statement).

Of course, I understand what it would mean if it were If($var -eq $true), but without the variable there for it to check I just don't understand what this is doing

Edit: Example

If($True){
   Try {Write-Host "Hello World"}
   Catch {"oops"}
   }

If($var -eq $True){
   Try {Write-Host "Hello World"}
   Catch {"oops"}
   }

CodePudding user response：

The If($True) statement isn't strictly necessary as it will always evaluate to True and proceed to execute the script block. I can see why this is confusing, because it's semantically superfluous.

Basically, if the value inside the () evaluates to anything other than $false, 0, $null, or ""(an empty string), it will execute the script block.

Why it's written that way is probably only known to the author. If I had to guess, perhaps it is to keep the style of the code similar to other code around it. I certainly wouldn't have bothered writing it as anything other than a simple Write-Host "Hello World" unless there was some sort of style guide mandating that format, or other reason to wrap everything in ifs and try/catch blocks.