var makeMaze = mazeSize => { // 外枠を作成 var fld = [...Array(mazeSize)].map(_=>[...Array(mazeSize)].map(_=>0)); var initMap = (fld,y,x) => (x==0 || y==0 || x==mazeSize-1 || y==mazeSize-1) ? 1 : fld[y][x]; fld = fld.map((arr,y)=>arr.map((…