kCGColorSpaceGenericRGB удерживается от использования на iPhone?

var jsonData1 = [{firstName: "Sam",age: "10"},{firstName: "John",age: "11"},{firstName: "Jack",age: "12"},{firstName: "Pam",age: "13"},{firstName: "Tom",age: "14"},{firstName: "Mitch",age: "15"}];
var jsonData2 = [{firstName: "Sam",city: "London"},{firstName: "John",city: "New York"},{firstName: "Jack",city: "Paris"},{firstName: "Pam",city: "Moscow"},{firstName: "Roger",city: "Shanghai"},{firstName: "Don",city: "Jakarta"}];

var defaults = {firstName: "", age: "", city: ""};
var data  = [ ...jsonData1, ...jsonData2 ];
var names = [ ...new Set(data.map(i=>i.firstName)) ];

var res = names.map(n => data
                  .reduce((acc, jd) => jd.firstName === n ? {...acc, ...jd} : acc, defaults)
                );

console.log(res);