JavaScript数组转对象的方法

Question

let arr = [{ a: 1},{ c: 3}];

//转为 let obj = {a:1,c:3}

Answer 1

let arr = [{a:1},{c:3}]
let obj = {}
arr.forEach(x => {
  for(let key in x){
    obj[key] = x[key]
  }
})

console.log(obj) // {a: 1, c: 3}