I'm learning about React hooks and I have a question about the useCallback hook. From what I understand, useCallback is useful for creating functions that you want to cache and reuse when the component re-renders (as opposed to creating the…
I have a JavaScript slideshow that displays images of various dimensions in a browser window. It uses object-fit: scale-down to resize the image to fit the container. I'd like to add a border to the image, but when I apply…
When I inspect an instance of an array (like const arr = [1, 2, 3];), the prototype chain for that array will point to Array.prototype. However, I am not able to understand why Array.prototype is displayed as an empty array…
In python, you can make an instance become a callable obj, like below shows: # py code snippet class Demo: def __call__(self): print("Demo's instance callable") Demo()() # Demo's instance is callable In js, is there the same feature like shown…
I want to crossfade several text quotes (coming from a CMS) having various lengths within a container div of a specific width. This is what I came up with, but it's 2024 and I feel like there has to be…
I just started learning React and I'm trying to build a static HTML page. Everything works fine except the React logo image which has refused to show. <!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <link rel="icon" href="%PUBLIC_URL%/favicon.ico" /> <meta…
I've got a line chart in my app using ApexCharts: import ApexCharts from "apexcharts"; var options = { chart: { type: "line", }, series: [ { name: "sales", data: [30, 40, 35, 50, 49, 60, 70, 91, 125], }, ],…
How can I effectively manage multiple asynchronous data fetch requests in JavaScript using the Fetch API? I want to create an array of fetch requests, each returning a promise, and ensure that all results are processed before proceeding. What’s the…
I'd like to react to changes made to an array of template ref elements created with a v-for loop over some collection of arbitrary objects. I'd like to pass this array to a component / composable and have it react…
Trying to write the flow logic for a drawing tool where user can enter a combination of keyboard inputs to draw complicated shapes on a canvas, to achieve this I'm trying to chain event listeners in a way that they…