Looking to construct an object consisting of empty arrays using values as keys.
const CATEGORIES = ['apple', 'banana', 'orange']
generateCategoryObject() === { apple: [], banana: [], orange: []}
function generateCategoryObject() {
const categoryObj = {}
for (const fruit of CATEGORIES) {
categoryObj[fruit] = [];
}
return categoryObj;
}
Hoping to enhance my understanding of ES6. Any suggestions on a concise solution for this?
Using FILTERS.reduce((x,y) => Object.assign(x, { [y]: []}), {})If you want to try out a different approach, consider utilizing the modern Object.fromEntries() method. Nonetheless, always verify the browser compatibility before implementation. Here's an example where Object.fromEntries() is combined with Array.map():
const FILTERS = ['foo', 'bar', 'baz'];
let res = Object.fromEntries(FILTERS.map(x => [x, []]));
console.log(res);.as-console {background-color:black !important; color:lime;}
.as-console-wrapper {max-height:100% !important; top:0;}If you're comfortable with post-ES6, you can utilize Object.fromEntries:
Object.fromEntries(FILTER.map(keyword => [keyword, []]))
Encountering an issue with proxy connection - unable to determine the root cause despite verifying all routes. Not able to successfully register the user and store data in MongoDB. Seeking suggestions for resolution. Thank you. Attempting to send user reg ...
In my form, I have a checkbox and I want to be able to use v-if directly to display or hide sections based on the selected checkbox values. Can this be done using v-if, or do I need to use watch:? ...
HTML Code: <div ng-repeat="addr in addrShipData"> <input type="radio" name="resp1" ng-checked='true'/> {{addr.addressLine1 +","+addr.addressLine2+", "+addr.city+ ","+addr.state+", "+addr.country+", "+addr.zipCode+","+addr ...
Having some trouble saving form data to the database using angularjs. Not sure what I'm doing wrong. Here's my HTML form: <form id="challenge_form" class="row" > <input type="text" placeholder="Challenge Name" ng-model="ch ...
I am a beginner to data tables and I am attempting to retrieve data from a JSON text file (test1.txt). Below is an excerpt of the data present in the file, which contains over 5000 entries: [{"0":"22352442","ID":"22352442","1":"22126303","PARENT":"2212630 ...
When I execute console.log(correct.password), it returns undefined, even though the if condition results in false. app.post('/login' , async (req , res)=> { const correct = data.findOne({name : req.body.name}).select({name : 0}); if(!c ...
I am currently faced with a scenario where the back end is returning the value as follows: 123222_D1.123 However, I need to display the date from the database (12-Jun-2020) as 2020-D1.123 in a drop-down menu. Currently, I am displaying the above value i ...
Is it possible to restrict HTML5 Drag & Drop functionality between different browsers or windows? I am currently working on an Angular2 app that utilizes native HTML5 Drag and Drop feature. Is there a way to prevent users from dragging items out of th ...
I'm encountering an issue where I am getting a Cannot convert a Symbol value to a string error in the console. My tech stack includes React v15 and jQuery v3. https://i.stack.imgur.com/qMOQ8.png This is my React code snippet: var CommentList = Reac ...
I'm currently working on an application that aims to connect users with friends based on specific questions they answer. However, I keep encountering an error message stating "TypeError [ERR_INVALID_CALLBACK]: Callback must be a function" when the cod ...
I need help creating a webpage that can extract and display recent earthquake data based on user input location on Google Maps. I have been using Dreamweaver to test my code, and everything functions perfectly when I use the live webpage feature within th ...
How can I achieve the following using JQuery? var test = "'#ISP'"; alert($(test).val()); I am receiving a "Syntax error, unrecognized expression." I believe I might be overlooking something here. Thank you in advance! ...
I am currently working on Angular UI Router and I want to refresh the current state by reloading it and rerunning all controllers for that state. Is there a way to reload the state with new data using $state.reload() and $stateParams? Here is an example ...
Every time I attempt to install a package using npm, I encounter the following warning: npm WARN EBADENGINE Unsupported engine { npm WARN EBADENGINE package: '<a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="c7b3aeaba2b3be ...
I am currently working on showcasing charts that display the most popular items in our store. To achieve this, I need to extract data from the database and incorporate it into the HTML. Unfortunately, the charts are not loading as expected. When testing wi ...
I am currently working on handling authentication errors for my website. However, when I submit incorrect data, I encounter the following error: node:internal/errors:478 ErrorCaptureStackTrace(err); ^ Error [ERR_HTTP_HEADERS_SENT]: Cannot set headers aft ...
I have a Post model with various fields such as author, content, views, likedBy, tags, and comments. model Post { createdAt DateTime @default(now()) updatedAt DateTime @updatedAt id String @id @default(cuid()) author U ...
I'm struggling with creating an AJAX call using Axios in React. Despite my efforts, I can't seem to pinpoint where the issue lies. Below is what I currently have within my component: ComponentDidMount() { axios.get('https://jsonplacehol ...
Websockets offer a more efficient solution for comet (reverse Ajax, often achieved through long-polling). However, are there other ways we can utilize websockets? For instance: - Can websockets be used to facilitate communication between different bro ...
When a user accesses the page, I want certain checkboxes to be automatically checked. To achieve this, I am storing the IDs of the HTML checkbox elements in a service. Upon entering the page, the service is utilized to retrieve an array containing these ID ...