请问如何合并数组里面的对象?

Question

请问[{"id":"1"},{"id":"2"}]怎么与[{"user":"admin"},{"user":"admin2"}]合并成[{"id":"1","user":"admin"},{"id":"2","user":"admin2"}]

Answer 1

var arr = [{id:1},{id:2}];

const obj = Object.assign({},...arr);

Answer 2

var array1 = [{"id":"1"},{"id":"2"}];

var array2 = [{"user":"admin"},{"user":"admin2"}];

array1.map(function(elem, index) {

    elem = Object.assign(elem,array2[index]);

    return elem;

})

console.log(array1);

Answer 3

let arr1=[{"id":"1"},{"id":"2"},{"id":"3"}];
let arr2=[{"user":"admin"},{"user":"admin2"}];
const len = arr1.length > arr2.length ? arr1.length : arr2.length;
let arr3=[];
for(let i=0;i<len;i++){

arr3.push(Object.assign(arr1[i] || {},arr2[i] || {}))

}