var arr = [{name: 'AAA'},{age: '999'}];
var obj = {};
arr.map(x => Object.assign(obj, x)); // {"name":"AAA","age":"999"}
var arr = [{name: 'AAA'},{age: '999'}];
var obj = {};
arr.map(x => Object.assign(obj, x)); // {"name":"AAA","age":"999"}