How can i use an Boolean State as an Condition?

[Cha0tic]

So i wanna know if i can use a boolean state (true/false) as an condition for if.

Like this but in a way that works:

if {boolean} is set to false:
    do this

Server Version: Paper Spigot 1.19 git-81
Skript Version: 2.6.3

Thanks

 

[lotzy]

if {boolean} is true:
  some code
else:
  some code

if {boolean} is false:
  some code
else:
  some code

 

[Cha0tic]

Thx. But still one more question.
Can i somehow preset a boolean to true or false like an variable?

 

[lotzy]

Thx. But still one more question.
Can i somehow preset a boolean to true or false like an variable?

set {_variableName} to true
set {_variableName} to false

 

[Cha0tic]

Thank you