How can an object inside an array be destructured in just one line?

Consider the following array:

const array = [{b:2}]

Can you extract the value of b using destructuring in just one line?

I attempted something similar to this approach, but it did not yield the desired result:

const [{b} = array]

Answer №1

To retrieve the value of a, you can destructure the array and access the first object inside it.

const dataArray = [{a: 15}]
const [{a}] = dataArray;
console.log(a)

Answer №2

([{x}] = [{x:1}]);
console.log(x);

If you want to assign a new name to the variable, you can do the following:

([{x: newName}] = [{x:1}]);
console.log(newName);

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Is it possible to generate a JSON file from a flowchart with the help of d3.js?

Situation: I'm currently in the process of developing a tool that will enable us to generate flow charts and then export the data into a JSON file for use in other services. Being new to JavaScript, I've come across d3 quite often. Can d3 handle ...

The presence of Vue refs is evident, though accessing refs[key] results in an

I am facing an issue with dynamically rendered checkboxes through a v-for loop. I have set the reference equal to a checkbox-specific id, but when I try to access this reference[id] in mounted(), it returns undefined. Here is the code snippet: let id = t ...

Create logic statements based on the information obtained from parsing an XML document

Looking for some assistance with writing this code. Any help is appreciated! Let's say I am extracting data from an XML file like the following: function parseXml(xml) { $(xml).find("ITEM").each(function() { var foo = $("bar", this).text ...

How does NodeJs handle ongoing tasks and processes seamlessly?

One interesting concept is the Event Loop, which accepts callbacks and executes them as needed. As far as I understand, this operates on a single thread event loop, meaning only one callback is executed at a time. Consider the following example: setInterv ...

When <li> elements are rendered via ajax, it is not possible to attach JavaScript Events to them

Hey there, I've got a drop down menu that's being shown using UL and LI tags. This is generated by a PHP script that echos out: '<li id='. $value .'>'.$value.'</li>' The JQuery function below works perf ...

The module in the relative path cannot be located by Node.js

Node.js is giving me some trouble with exporting and importing classes from multiple files. In one file, I have two classes that I'm exporting using the following code: module.exports = {TrigInter, Hilbert}; However, when I try to import these classe ...

It is not possible to access fields in Firestore using Node.js

Exploring the limits of my Firestore database access with a test function: exports.testfunction = functions.https.onRequest(async (request, response) => { try{ const docRef = firestore.collection("Stocks").doc("Automobile" ...

JavaScript's click() function cannot be used on text areas

Currently, I am in the process of creating a script for automating comments. During step one, I encountered an issue where the code is expected to simulate a click on this text area within a red box, but unfortunately nothing happened. Initially, I attem ...

I am having trouble locating the lightbox and bootstrap js file in Django. Any suggestions on how to resolve this issue would

[11/Nov/2020 20:13:11] "GET /about HTTP/1.1" 200 3615 [11/Nov/2020 20:13:12] "GET /static/js/lighbox.min.js HTTP/1.1" 404 1677 [11/Nov/2020 20:13:12] "GET /static/js/bootstrap.bundle.min.js.map HTTP/1.1" 404 1716 A snippet fr ...

During operational hours, an Ajax request may cause interruptions to the website's functionality

Having an issue with a large ajax request: I am querying a PHP file that makes some cURL requests, taking 15-20 seconds to complete and then returning JSON on my webpage. It's a standard ajax request, but I found a strange bug. While the ajax query i ...

Determine how to use both the "if" and "else if" statements in

/html code/ There are 4 textboxes on this page for entering minimum and maximum budget and area values. The condition set is that the maximum value should be greater than the minimum value for both budget and area. This condition is checked when the form i ...

What CSS property prevents a fixed header from overlapping a scrolled element?

After creating a fixed header for my HTML table, I noticed that as I scroll down the page, everything is being overlapped by the fixed header except for one slider (noUiSlider). I am curious to know which CSS property is preventing the header from overlayi ...

issue with non-existent value in v-for loop when using functional template refs

Scenario I am currently developing a personalized filtering feature. This feature allows users to add n filters that are shown using a v-for loop in the template. Users have the ability to modify input values and remove filters as needed. Challenge Issue ...

Is there a way to modify the starting position of my shapes in Three.js?

Is there a way to adjust the starting position of my geometry? Currently, it appears in the center of the canvas, but I would prefer it to be at the top left corner. Any suggestions on how to achieve this? scene = new THREE.Scene(); camera = new THRE ...

Express encountered an error: NODE_ENV is undefined

This section contains my index.js code: var express = require('express'); var app = express(); var compression = require('compression'); var path = require('path'); app.use(compression()); app.set('port', (process. ...

Node.js and Couchbase integration: A closer look at the functionality of the add() method

As I dive into learning about couchbase, I encountered a basic issue with inserting data using the add() method in my couchbase instance. Despite troubleshooting, something seems amiss in my code and I'm unable to pinpoint the exact reason. var http ...

The Android webview encountered an error: XMLHttpRequest failed to load because the specified Origin <url> is not permitted by Access-Control-Allow-Origin restrictions

I have developed an application that loads an entire website in an Android WebView. The native code in the Android project communicates with the webpage using the Android Jockey Library, and vice versa. Everything is working smoothly except for one instan ...

Transitioning from Jquery to vanilla JavaScript or transforming Jquery code into pseudo code

Struggling with a snippet of jQuery code here. While I have a good grasp on JavaScript, my knowledge of jQuery is somewhat limited. I am seeking assistance to analyze the following code in order to translate it into plain JavaScript or pseudo code that ca ...

Sending Javascript Variable through Form

I'm a newcomer to JavaScript and struggling to solve a particular issue in my script. I need help passing the variable "outVal" to a PHP script when the submit form is clicked. The value of "outVal" should come from the "output" value in the script. I ...

I am encountering an issue with Angular where the following error message is displayed: "src/app/app.component.html:18:20 - error TS2339: Property 'DepScreen' does not exist on type 'AppComponent'"

This code snippet is from my app.component.html file: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0" ...