I would like to create a ConditionalWrapper component to being more declarative, in my app. My idea is to use it as following I got this so far, but obviously it is not working, and I really cannot see where I am wrong. The error I get at the moment is Uncaught Error: Element type is invalid: expected a strin…
Uncaught (in promise) FirebaseError: Expected type ‘rc’, but it was: a custom ac object
The error happens in this code: ** I am trying from 2 days but can’t understand what’s the problem !!** I am trying to add an array in firebase , i am tring so many solution but can’t get what’s the problem !! Answer The setDoc() function takes a DocumentReference as first parameter bu…
How to validate multiple file uploads with multer expressjs
I have a problem with express.js and multer when I try to upload 2 valid images and 1 example pdf to validate is all images, it will upload that two images into a folder, and then it will throw the error for pdf that is an invalid format, can I somehow validate first all images and then do the upload
Retrieve value from IndexedDB using Dexie and Svelte
I don’t understand how I can get a value from IndexedDB using Dexie. Database is all good in ‘application’ tab in inspect tool. Total newbie, so please be understanding. My db.js App.svelte Whatever I try, object with daysMax={total} outputs undefined, [object Object] or something like [Dexi…
Electron “ready-to-show” event not working as expected
Here is a block of code from my application Codey. src/main.py src/docs/renderer.js When darkMode = true, toggleDarkMode is never run. My application has two different windows – an editor and a docs window. For both windows, on the “ready-to-show” event, “dark-mode:toggle” is sen…
React componentDidMount setState but return undefined
I can get list with get axios.get method. then ı can use setState and it works flawlessly. but the return is not true , its return undefined console.log(result) => undefined . How can ı check if setState work fine return true or return false ? Answer Your return true statement is in setState’s post-s…
Convert string to date format in JavaScript
I have a string variable I want the variable into date format. My Code: My Output: Expected Output: Answer You can use toLocaleDateString with an argument that specifies a locale for which your format is used. For instance, the Swedisch locale uses the YYYY-MM-DD format:
HTML canvas not producing image from web cam
I want to capture image every time socket.on(‘takePic’) gets triggered. It works fine for the first time. but when the socket.on(‘takePic’) gets triggered second time,the canvas div is just blank and so the img tag. I have copied the takePicture() function from somewhere and added the …
Getting the image file from the server and converting it to base64 using nodejs express.js
How to create a function which gets the exact image file from the server and then converting it to base 64 and lastly storing it to a variable. Note: Exact image file (no need to loop through the directory to list all files). Answer You can do that with the image-to-base64 library. Installation Usage Displayi…
Problem with using IntersectionObserver to trigger CSS animation
I am trying to use IntersectionObserver to observe the 3 container so that the wipe-enter animation will start when they are inside the viewport one by one. If I scroll to a container (that is outside the viewport) slowly so that only part of it is inside the viewport, the container keeps flickering until it …