var arr = ['a', 'b', 'c', 'd', 'd', 's', 'b', 'b', 'c', 'x', 'c'];var obj = {};arr.forEach(function(item, index){obj[item] = obj[item] || 0;obj[item]++;});console.log(obj);
![判断数组中出现次数最多的元素 判断数组中出现次数最多的元素](https://image.shishitao.com:8440/aHR0cHM6Ly93d3cuaXRkYWFuLmNvbS9nby8%3D.jpg?w=700)
![判断数组中出现次数最多的元素 判断数组中出现次数最多的元素](https://image.shishitao.com:8440/aHR0cHM6Ly93d3cuaXRkYWFuLmNvbS9nby8%3D.jpg?w=700)
var arr = ['a', 'b', 'c', 'd', 'd', 's', 'b', 'b', 'c', 'x', 'c'];var obj = {};arr.forEach(function(item, index){obj[item] = obj[item] || 0;obj[item]++;});console.log(obj);