Servertec | if then-elseif then-else-end

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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 | the expression to evaluate.
statement | any statements to process.
#### 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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