JScript ランゲージ リファレンス、slice メソッド(Array オブジェクト)

a = [1, 2, 3]

WScript.Echo(a.slice(0));
WScript.Echo(a.slice(1));
WScript.Echo(a.slice(3));
WScript.Echo(a.slice(0,1));
WScript.Echo(a.slice(1,0));
WScript.Echo(a.slice(-1));
WScript.Echo(a.slice(-2,-1));
WScript.Echo(a.slice(-2));
WScript.Echo(a.slice(-10));