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"

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