Used to conditionally execute a block of statements when some expression evaluates to true and another block of statements when the expressions are false.
Syntax
if expression then
{ statement }...
[ elseif expression then
{ statement }... ]...
else
{ statement }...
end
Notes
expression
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the expression to evaluate.
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statement
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any statements to process.
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Example
if quantity > 0 then
unitCost = totalAmount / quantity
println( "Unit Cost: " + unitCost )
elseif quantity = 0 then
println( "0 items ordered" )
else
print( quantity + "is not valid value" )
end
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