与对象解构相反

Question

Given the following example. Is there a shorthand for the field asignment

let myObj = {someField: 'someValue'}
let foo = 'value'

myObj.foo = foo // I would like to do the opposite of object destructuring: const {foo} = myObj. I don't want to repeat foo twice.

Answer 1

You could use Object.assign with a short hand property .

 const myObj = {} const foo = 'value' Object.assign(myObj, { foo }); console.log(myObj); 

Answer 2

If you switch around your statements, you could do it:

const foo = 'value';
const myObject = { foo };

or if you change from const to var so you can assign a new object to your myObj :

var myObj = {};
const foo = 'value';
myObj = { foo }