How to sort double objects?

December 10, 2021

I have an array. The data in the array is in the following format.

var test = [
    {
    "a" : {
        "order" : 100,
    }
  },
  {
    "b" : {
        "order" : 10,
    }
  },
  {
    "c" : {
        "order" : 1,
    }
  },
];

I want to sort this data according to order value. Is there any way to do this?

>Solution :

You can use Object.values to get the first property value and access the order property on that to compare.

let test=[{a:{order:100}},{b:{order:10}},{c:{order:1}}];
test.sort((a, b)=>Object.values(a)[0].order - Object.values(b)[0].order);
console.log(test);

For a more generalized solution, you can create a key extractor function to get the value to compare by.

let test=[{a:{order:100}},{b:{order:10}},{c:{order:1}}];
const getOrder = x => Object.values(x)[0].order;
test.sort((a, b)=>getOrder(a) - getOrder(b));
console.log(test);