PowerShell Ternary Statement

PowerShellTernary statements can be very useful but difficult to read. Many blue moons ago, I used to write a lot of Java, which has a ternary statement just like C:

x = (condition) ? 1 : 0;


It is a short and concise way to have a condition if it is a matter of setting a simple value, but even in that case, if you are unfamiliar with what a ternary is then it is next to being unreadable magic code (like a lot of Perl that I have seen written).

I was watching a video on Python and saw a very clean looking ternary:

x = 1 if condition else 0


That is very straight forward and relatively easy to understand. Even if you do not know what a ternary is, you can likely understand that this is a conditional statement.

I have always wanted a ternary in PowerShell because I like to reduce my lines of code, but I never want to make it ugly or unreadable, so this is out:

$x = If ($condition) {1} Else {0}


It is just too much to cram into one line because chances are, it will be a slightly more complicated bit of code than that very simple example.

Then, I came across this:

$x = @{$True=1;$False=0}[($condition)]


It isn’t exactly cleaner, but it may be clearer as a ternary. It is a longer bit of code for the same task, too.

What do you think?

EDIT: Here is some discussion about a filter method

$x = ?: {$condition} {1} {2}


 

Advertisements

One thought on “PowerShell Ternary Statement

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s