I have an array of object which consists some id's as a key. const sampleObj1 = {0011:[{},{}], 0022:[{}, {}], 0033:[{},{}]} const sampleObj2 = [{id:0011, name:'
So, I've never done this before, trying to add a method to the Array.prototype. See console.log statement below for usage. It keeps telling
Currently, I was able to get the following function to retreive the max value from an array through recursion const max = ([a,...rest]) => !rest.length || a
Summary: Hey I've got a filter for some data. It's filtering fine but it's not removing duplicate objects. Arguments taken in order: 1. datasource 2. filters (r
I'm practicing partial application of a function, that is, fixing function arguments. I've learned two ways to achieve it: By currying the original function fir
What's the correct syntax for the onChange es6 function? function myEvent(e){ console.log(e.target) } <select onChange=(event)=>{console.log(event.ta
I'm merging two objects together to create a filter object. However I want to group the merged objects property values where the keys are the same. So... [{cate
I need to destructure and get values of title, child, childTitle from this object const obj1 = { title : 'foo', child : { title2 : 'bar' } } le
Consider the React code declared inside LoremComponent.tsx below: const foo = "bar"; export default (props) => { return ( <h1>{foo}</h1>
I'm currently learning as much as I can about recursion but I'm really stuck on how to use it to check whether all the number elements in an array are even numb
I'm making a Scrabble game with HTML and Javascript and I'd like to add a "hint word" feature based on the player's rack. I have a dictionary array with the val
ECMAScript 6 introduced the let statement. I've heard that it's described as a local variable, but I'm still not quite sure how it behaves differently than the
I am currently working on a duty rota App. I need to calculate which employee can work on every particular day of the month. This must also be updated "on the f
I have a JSON Object like so that I am trying to produce a CSV from { "football": { "count": 2109, "emailed": 0, "optin": 2109,
I would like to import a JSON5 file into a Javascript object in the same way [one can import a JSON file](import config from '../config.json'). Shows this mess
I want to test if a function in a module generated something in document but I am having trouble defining the document variable. I have simulated it jsdom but I
This script issues the active class for the active section. Recently noticed that it stops working on small screens. Even in the developer's console in chrome,
I'm trying to generate an array of objects where it outputs an array looking like this: [ { _id: 2, label: 'A1' }, { _id: 3,
My understanding of how asynchronous tasks are scheduled in JS Please do correct me if I'm wrong about anything: The JS runtime engine agents are driven by an e
Is it possible to change button text that is created using array. If it is possible, what should I do with the onClick function in the button. Here is the sampl