js对象排序&&倒序

按照对象的值大小排序对象

function sortObj(obj) {
var arr = [];
for (var i in obj) {
arr.push([obj[i],i]);
};
arr.sort(function (a,b) {
return a[0] - b[0];
});
var len = arr.length,
obj = {};
for (var i = 0; i < len; i++) {
obj[arr[i][1]] = arr[i][0];
}
return obj;
}

倒序排序对象

function sortObj(obj) {
var arr = [];
for (var i in obj) {
arr.push([obj[i],i]);
};
arr.reverse();
var len = arr.length;
var obj = {};
for (var i = 0; i < len; i++) {
obj[arr[i][1]] = arr[i][0];
}
return obj;
}