λ式相当?
以下の二つは等価
gosh> (lambda () (print "OK")) #<closure #f> gosh> ((lambda () (print "OK"))) OK #<undef> gosh>
js> function(){print("OK")} function () { print("OK"); } js> (function(){print("OK")})(); OK
クラス
js> function A(){this.a=1;this.b=function(){print("OK");}};c=new A;c.a+=3;print(c.a);c.b() 4 OK