Javascript基于数字键对对象数组进行排序(Javascript sort an array of objects based on numeric key)

Javascript基于数字键对对象数组进行排序(Javascript sort an array of objects based on numeric key)

我有一个对象数组，如下所示：

var data = [ { title: 'Shirt', position: 3 }, { title: 'Ball', position: 1, } ]

我怎么能把它排序在像这样的for loop使用。

for(var i in data) { }

我试过了：

for(var i in data | orderBy:'position')

但这是有角度的，所以正常Javascript它不起作用。

我认为他们必须在循环之前对数组进行排序，或者在循环中添加过滤器，不确定哪种方法最好。

I have an array of objects that looks like this:

var data = [ { title: 'Shirt', position: 3 }, { title: 'Ball', position: 1, } ]

How could I sort it for use in a for loop like this.

for(var i in data) { }

I tried:

for(var i in data | orderBy:'position')

But that is angular so normal Javascript it doesn't work.

I'm thinking their must be some way to sort the array before looping through it, or adding a filter to the loop, not sure which is the best way.

最满意答案

但这是有角度的，所以正常Javascript它不起作用。

您只需使用JavaScript 排序功能即可。 它也适用于Angular（TypeScript）。

注意：排序数字时，您只需使用紧凑比较 ：

myArray.sort((n1,n2) => n1 - n2);

var data = [
 {
   title: 'Shirt',
   position: 3
 },
 {
   title: 'Ball',
   position: 1,
 }
];

 data.sort(function(a, b) { 
return a.position- b.position;
})

console.log(data); 
  
 
 
 
But that is angular so normal Javascript it doesn't work.
 
 
Simply you can use JavaScript sort function. It will work in Angular(TypeScript) also. 
 
Note: When sorting numbers, you can simply use the compact comparison:
 
 
 
myArray.sort((n1,n2) => n1 - n2);
 
 
 
 
  
  
var data = [
 {
   title: 'Shirt',
   position: 3
 },
 {
   title: 'Ball',
   position: 1,
 }
];

 data.sort(function(a, b) { 
return a.position- b.position;
})

console.log(data);