function redoTime(arr) {
var arr1 = [],
obj = {};
arr.forEach(function(item, index) {
if (index === 0) {
arr1.push(arr[0]);
} else {
if (arr1.indexOf(arr[index]) < 0) {
arr1.push(arr[index]);
}
}
})
for (var prop in arr1) {
obj[arr1[prop]] = 0;
}
for (var k = 0; k < arr.length; k++) {
if (arr1.indexOf(arr[k]) > -1) {
obj[arr[k]]++;
}
}
var arrs = String(arr);
var str = "数组:" + arrs + " 该数组中:";
for (var propObj in obj) {
str += propObj + "出现的次数为:" + obj[propObj] + "次; "
}
console.log(str);
}
统计数组内所有数字出现次数
猜你喜欢
转载自blog.csdn.net/weixin_45261642/article/details/107879435
今日推荐
周排行