めも。 配列の行と列を入れ替え＆ベジェ曲線＆配列の初期化

function rotateArray (ary) {

  var i = ary[0].length;
  var tmp = [];
  
  while (i--)
    tmp.push ([]);
  
  ary.forEach (function (ary_, i) {
    ary_.forEach (function (a, j) { tmp[j][i] = isNaN (a) ? a: Number (a); })
  });

  return tmp;
}


function cubic_bezier(d,e,f,g){return function(a){var b=1-a,c=3*b*a,b=c*b,c=c*a,a=a*a*a;return[b*d+c*f+a,b*e+c*g+a]}};

function A (n, num) {
  var result = [];
  var i;
  
  for (i = 0; i < n; i++)
    result.push (num);
  
  return result; 
}

function B(n,m){return(new Array(n)).map(function(){return m})}
function C(n,m){return eval('['+(new Array(n)).join(num)+']')}