数组对象的合并

Question

let a = [{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];
let b=[{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];

用什么方法将两个数组进行合并？得到 c = [{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];

Answer 1

    let a = [{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];
    let b=[{name: '', age: '', sex: ''},{name: '', age: '', sex: ''},{name: '', age: '', sex: ''}];
    let  c=a.concat(b)
    console.log(c)

Answer 2

c=[...a,...b]

Answer 3

a.concat(b)