PascalABC.NET: Difference between revisions

Revision as of 23:21, 5 April 2023

Revision as of 23:26, 5 April 2023

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In PascalABC.NET, functions are [[First-class citizen|first-class objects]]. They can be assigned to variables, passed as parameters, and returned from other functions. Functional type is set in the form <code>T -> Res</code>. An [[anonymous function]] can be assigned to the variable of this type:

<syntaxhighlight lang="delphi">

## // denotes that the main program will be written without enclosing bedinbegin-end

var f: real -> real := x -> x*x;

</syntaxhighlight>

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begin

Down; // Prepareprepare turtle's pen

SetSpeed(11); // Setset turtle's movement speed

SetColor(Colors.Red); // Setset pen color

for var i:=1 to 450 do

begin

SetColor(RGB(128+i,0,i)); // Changechange pen color

Forw(i); // Movemove turtle forward

Turn(96); // Rotaterotate turtle clockwise

end;

end.

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for var i:=a to b do

sum += i*i;

Print($'Sum = {sum}') // string interpolation

end.

</syntaxhighlight>