Vue requires data to be a function that returns an object, so:
data () {
return {}
}
will work, but using arrow syntax like this:
data: () => {
}
Why doesn't the second option work even though they are both functions returning an object?
Vue requires data to be a function that returns an object, so:
data () {
return {}
}
will work, but using arrow syntax like this:
data: () => {
}
Why doesn't the second option work even though they are both functions returning an object?
Using curly braces { in arrow functions starts a block, not an object.
To make it work properly:
data: () => ({
})
Make sure to include the parentheses ( and ). As specified in MDN/Arrow Functions/Syntax:
Syntax - Advanced Syntax
// Enclose the function body in parentheses to return an object literal expression: params => ({foo: bar})
In Vue, avoid using arrow functions with API Docs:
Do not use an arrow function for the
dataproperty as it binds the parent context. Usingthismay not refer to the Vue instance and could lead to unexpected behavior.
It is possible. For modifying a prop's value (with v-model), it is advised to create an internal property like internalStuff within data and initialize it with the props value:
Vue.component('my-component', {
props: ['stuff'],
data() {
return {internalStuff: this.stuff}; // Works fine without arrow functions
},
template: `<input type="text" v-model="internalStuff">`
}
After obtaining a static code for Google Maps from the Google Maps website, I have it integrated and working well. However, my goal now is to dynamically fetch addresses from a database instead. Below is the static iframe code: <iframe src="https://w ...
Currently, I am attempting to create a webpage where users can input two colors and then when they press the button, a gradient of those two colors will appear on the button itself. <!doctype html> <html> <head> <script src=&apos ...
I am currently facing an issue while trying to obtain the width of a container dynamically in Vue using refs. The problem I am encountering is that it either shows the previous value or returns undefined. I suspect there might be a mistake in my approach. ...
Describing the Problem: I am facing a challenge with flattening an array of sales data. Each element in the array contains an ID, sale code, seller username, timestamp, and details which include an array of products, quantities, and subtotals for each item ...
It seems like I am hitting a wall when it comes to finding solutions for this particular issue. Currently, I have a component that is supposed to retrieve data from a file and display it. My intention is to only pass the filename to the component so that ...
For my current Javascript project, I am tackling the task of dividing the page into two separate div elements. The left div is populated with randomly positioned images, and then I utilized the .cloneNode() method to duplicate this on the right side, exclu ...
Below is the code that I am currently writing tests for: 'use strict'; var internals = {}; var _ = require('lodash'); module.exports = { initialize: function (query) { internals.query = query; }, createField: fu ...
I was looking into utilizing a reference data type from the profile document in order to access a subcollection on the referenced clan document. https://i.sstatic.net/M4gmT.png https://i.sstatic.net/ltfw2.png exitClan() { console.log(this.getUser. ...
I am working on an application that generates todo lists for tasks. These lists can be edited and deleted. I am trying to implement a dropdown menu in each list to provide options for updating or deleting the list individually. However, when I click on the ...
I'm encountering an issue when attempting to convert CSV to JSON. The following is the snippet of code I am using for the conversion: d3.csv("http://localhost:8080/Sample/flight.csv", function(flights) { //alert(flights); ...
Is there a DOM API available for Node.js that allows me to use pure JavaScript commands? I prefer not to use jQuery as I already have existing code in vanilla JS. ...
I'm working on a website to help users plan study schedules. Currently, I'm developing an Add/Remove subject section which allows users to add, edit, or remove subjects with an id and name. The subjects added will be displayed as a list of <i ...
When importing the following in a typescript nodejs app import { pipeline } from "stream/promises"; Visual Studio Code (vscode) / eslint is showing an error message Unable to resolve path to module 'stream/promises' https://i.sstatic. ...
I'm currently working on integrating a service worker into my Angular application to enable updates without user intervention. Here is the step-by-step process that I am following: Make changes to the application Run ng build Start an HTTP ser ...
I'm having trouble incorporating file upload support into my AJAX post function. Can anyone provide some guidance on what I might be missing? function ajax_post(url, param) { if (url.substr(0, 11) == 'javascript:') { result = &ap ...
Recently, I've been developing a discord.js server info command. A thought crossed my mind about displaying the emojis present in a server, but I'm unsure about how to go about doing that. I've figured out how to retrieve the total number of ...
Can I use Firebase callable functions with React Native? I have successfully deployed an onCall function and it is visible in my dashboard. I have initialized the functions using: // Initialize Cloud Functions through Firebase firebase.functions(); The ...
Recently, I encountered a puzzling error. Upon visiting this link The carousel fails to load properly near the bottom of the page. However, if you click on the logo or navigate back to the home page, it works fine. Additionally, performing a command + r ...
Below is the script I am working with: $(function() { var fileCount = {{$image_counter}}; $('#remove-file').click(function() { fileCount--; }); if (fileCount >= '5'){ $("#d ...
I'm trying to add a login module to my AngularJS app. When I try to call UserService from the authenticationService, it's showing as undefined. What am I missing here, why is UserService coming up as undefined? var authenticationService = angula ...