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Consider the following program, written in JavaScript - like syntax: main program var x , y , z , function subl ( ) { var
Consider the following program, written in JavaScriptlike syntax: main program var x y z function subl var a x z function sub var a b y: function sub var a y w Given the following calling sequences and assuming that dynamic scoping is used, what variables are visible during execution of the last subprogram activated? Include with each visible variable the name of the unit where it is declared. "main calls sub; subi calls sub; sub calls sub
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