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JavaScript implementation of cons, car and cdr
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function cons(x, y) { | |
return function(w) { return w(x, y) }; | |
}; | |
function car(z) { | |
return z(function(x, y) { return x }); | |
}; | |
function cdr(z) { | |
return z(function(x, y) { return y }); | |
}; | |
var list = cons(1, cons(2, null)); | |
document.writeln( car(list)); | |
document.writeln( car(cdr(list))); | |
document.writeln( cdr(cdr(list))); |
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