Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
499 views
in Technique[技术] by (71.8m points)

node.js - How to bind methods when destructuring an object in JavaScript?

How to bind methods when destructuring an object in JavaScript?

const person = {
  getName: function() {
    console.log(this);
  }
};

var a = person.getName;
var b = person.getName.bind(person);
var {getName: c} = person;

person.getName(); //=> {getName: [Function]}
a();              //=> window or global
b();              //=> {getName: [Function]}
c();              //=> window or global

I want c to log in the console its "parent" object {getName: [Function]}.

Is there any way to bind all methods when destructuring an object in one destructuring line?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

No, there is no way. Functions detached from objects lose the original context. And destructing in JavaScript has no syntax to do something with extracted values on the fly.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...