これはOK var numAry = new Array(); numAry[0] = [1, 3, 5, 4, 9]; numAry[1] = [1, 4, 6, 2]; numAry[2] = [1, -2, -3]; なぜかこれはだめ var numAry = []; numAry[0] = [1, 3, 5, 4, 9]; numAry[1] = [1, 4, 6, 2]; numAry[2] = [1, -2, -3];

リテラルで配列の配列を表現しただけhttp://builder.japan.zdnet.com/script/20364628/