object sort javascript code example

Example 1: sort by object property javascript

let list = [
  {
      name: "world"
  },
  {
      name: "hello",
  },
];

// This doesn't account for if names are the same between objects
let x = list.sort((a, b) => (a.name > b.name ? 1 : -1));

console.log(x);

/*
[
  {
      name: "hello",
  },
  {
      name: "world"
  },
];
*/

Example 2: sort array of objects javascript

list.sort((a, b) => (a.color > b.color) ? 1 : -1)

Example 3: javascript sort object js

grossaryList = {
  'bread': 1,
  'apple': 6,
  'milk': 1, 
  'orange': 3,
  'broccoli': 2 
}

return Object
  .entries(grossaryList)
  .sort((a,b) => b[1]-a[1])

//=> [['apple', 6],['orange', 3],['broccoli', 2],['bread',1],['milk', 1]]

Example 4: javascript sort array of objects by key value

arr.sort((x, y) => x.distance - y.distance);

Example 5: javascript sort object by key

function sortObjectByKeys(o) {
    return Object.keys(o).sort().reduce((r, k) => (r[k] = o[k], r), {});
}
var unsorted = {"c":"crane","b":"boy","a":"ant"};
var sorted=sortObjectByKeys(unsorted); //{a: "ant", b: "boy", c: "crane"}

Example 6: javascript sort object

var maxSpeed = {
    car: 300, 
    bike: 60, 
    motorbike: 200, 
    airplane: 1000,
    helicopter: 400, 
    rocket: 28800
};
var sortable = [];
for (var vehicle in maxSpeed) {
    sortable.push([vehicle, maxSpeed[vehicle]]);
}

sortable.sort(function(a, b) {
    return a[1] - b[1];
});

//[["bike", 60], ["motorbike", 200], ["car", 300],
//["helicopter", 400], ["airplane", 1000], ["rocket", 28800]]