I'm trying to populate a grid of coordinates into a multidimensional array using ES6 nested map methods using this code: var gridSize = 4; var regionA
When I write an async function it usually returns a promise: export const myPromiseFunction = async (params) => { // some logic return Promise.resolve('r
I'm using ArcGIS JSAPI 4.12 and wish to use Spatial Illusions to draw military symbols on a map. When I add milsymbol.js to the script, the console returns err
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,
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