var s; if (arguments.length === 1) { pi=3.14; s=rrpi; } else { s=rrpi; } return s;
pi==null?pi=3.14:pi; return pirr;
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Memoisademo
var s; if (arguments.length === 1) { pi=3.14; s=rrpi; } else { s=rrpi; }
return s;