배열 최소값 최대값
배열에서 최소값, 최대값 구할 때. var min = [1, 20, 11, 88, 3].slice(0).sort(function(a,b){a>b})[0], max = [1, 20, 11, 88, 3].slice(0).sort(function(a,b){a<b})[0]; ["b","a","d","c"].slice(0).sort()[0]; //"a" ["b","a","d","c"].slice(0).sort().reverse()[0]; //"d" ["b","a","d","c"].slice(0).sort(function(a,b){return a > b;})[0]; //"a" ["b","a","d","c"].slice(0).sort(function(a,b){return a < b;})[0]; //"d"