返回数组(字符串)一个元素出现的次数
1 //ecDo.getEleCount('asd56+asdasdwqe','a') 2 //result:3 3 //ecDo.getEleCount([1,2,3,4,5,66,77,22,55,22],22) 4 //result:2 5 getEleCount: function (obj, ele) { 6 var num = 0; 7 for (var i = 0, len = obj.length; i < len; i++) { 8 if (ele === obj[i]) { 9 num++; 10 } 11 } 12 return num; 13 }
//数组最大值 maxArr: function (arr) { return Math.max.apply(null, arr); }, //数组最小值 minArr: function (arr) { return Math.min.apply(null, arr); }