I have the below array of objects.
var arr = [
{group: “AA”, complexity: “Simple”},
{group: “AA”, complexity: “Complex”},
{group: “AA”, complexity: “Simple”},
{group: “BB”, complexity: “Simple”},
{group: “AA”, complexity: “Medium”}
];
I am trying to get the below as the output:
[
{group: “AA”, complexity: “Simple”,count: 2},
{group: “AA”, complexity: “Complex”,count: 1},
{group: “BB”, complexity: “Simple”,count: 1},
{group: “AA”, complexity: “Medium”,count: 1}
]
Can anyone please help me achieve this?
Not sure you can use an object as the key in another object. You could make something that looks like this, though:
[
{group: “AA”, complexity: “Simple”, count: 2},
{group: “AA”, complexity: “Complex”,count: 1},
{group: “BB”, complexity: “Simple”, count: 1},
{group: “AA”, complexity: “Medium”,count: 1}
]
And with ES5, the cleanest way might be to write a reducer function . If you Google something like “using reduce to group objects” there are some great articles that might help.
system
Closed
December 26, 2021, 2:25am
3
This topic was automatically closed 182 days after the last reply. New replies are no longer allowed.