I have an object data, I sort this data according to their points, but if the points are the same, I want the last updated item to be on top. but I could not create the algorithm here. Can you help me ?
My JSON Data
[
{
"name": "Item 1",
"point": 3,
"updatedAt": "10/06/2022 9:39"
},
{
"name": "Item 2",
"point": 4,
"updatedAt": "10/06/2022 9:45"
},
{
"name": "Item 3",
"point": 2,
"updatedAt": "10/06/2022 9:39"
},
{
"name": "Item 4",
"point": 1,
"updatedAt": "10/06/2022 9:39"
},
{
"name": "Item 5",
"point": 5,
"updatedAt": "10/06/2022 9:39"
},
{
"name": "Item 6",
"point": 2,
"updatedAt": "11/06/2022 3:05"
}
]
For example, the points of Item 3 and Item 6 are the equal here, but Item 3 displays at the top. Because I added Item 6 later. So how do I get Item 6 to be above Item 3 if their points are equal?
I was planning to do this so that the last updated is at the top.
I tried several methods but it didn't work, for now this is my starting code.
if (sortBy === "lowtohigh") {
computedData = data.sort((a, b) => {
return a.point - b.point
});
}
if (sortBy === "hightolow") {
computedData = data.sort((a, b) => {
return b.point - a.point
});
}
Thank you for your answers in advance.
Using Array#sort and Date (as fallback):
const arr = [
{ "name": "Item 1", "point": 3, "updatedAt": "10/06/2022 9:39" },
{ "name": "Item 2", "point": 4, "updatedAt": "10/06/2022 9:45" },
{ "name": "Item 3", "point": 2, "updatedAt": "10/06/2022 9:39" },
{ "name": "Item 4", "point": 1, "updatedAt": "10/06/2022 9:39" },
{ "name": "Item 5", "point": 5, "updatedAt": "10/06/2022 9:39" },
{ "name": "Item 6", "point": 2, "updatedAt": "11/06/2022 3:05" }
];
const res = arr.sort((a, b) =>
a.point - b.point || new Date(b.updatedAt) - new Date(a.updatedAt)
);
console.log(res);If later numbered items have that naming convention and are always the most recently updated, check the order of items if points are equal:
computedData = data.sort((a, b) => {
if (a.point - b.point) return a.point - b.point; // Change this line depending on asc or desc sort.
else {
return Number(a.name.split(" ")[1]) - Number(b.name.split(" ")[1]);
}
});