composeu

<!DOCTYPE html><html><head><title></title></head><body><pre><script>


    function doubl( n ){
        return n + n;
    }
    document.writeln( doubl(3) );               // (3 + 3) * (3 + 3)


    function square( n ){
        return n * n;
    }
    document.writeln( square(3) );               // (3 + 3) * (3 + 3)


    function composeu( unione, unitwo ){
        return function( a ){
            return unitwo( unione( a ) );
        }
    }

    document.writeln( composeu(doubl,square)(3) );               // (3 + 3) * (3 + 3)




</script></pre></body></html>

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