javascript - grouping objects by properties

Question

my question is somewhat similar to javascript | Object grouping .

my input obj is

[
  {
    \"name\":\"Display\",
    \"group\":\"Technical detals\"         


        

Answer 1

Without sorting you may group by the provided property (by) as follows;

function quasiSort(a,by){
  var h = a.reduce((h,e) => h[e[by]] ? (h[e[by]].push(e), h)
                                     : (h[e[by]] = [e], h), {});
  return Object.keys(h).reduce((r,k) => r.concat(h[k]),[]);
}
var data = [{ "name":"Display",
             "group":"Technical detals",
                "id":"60",
             "value":"4"
            },
            { "name":"Manufacturer",
             "group":"Manufacturer",
                "id":"58",
             "value":"Apple"
            },
            { "name":"OS",
             "group":"Technical detals",
                "id":"37",
             "value":"Apple iOS"
            }
           ];
           
console.log(quasiSort(data,"group"));