Using JEST I want to test if an array of objects is a subset of another array. I want to test the following: I’ve tried the following: But this is not correct since objectContaining doesn’t accept array as param … it works only if subset is a single object. Answer I’ve never tried this…
Can a Firebase error message template or Alert be customised to show custom Alerts?
I am working on a React App. The app has basic auth features. Here is the code below. The issue here is that i am trying to create a custom alert for a specific error that is “The Email ID Already Exists”. But Firebase has its own predefined error template defined for it. And when I replace with a…
Is “” ( empty-string ) equivalent to boolean false or a false(y) value?
Please explain a little bit on this topic. I have went through some articles but I have not satisfied with their explanations. Answer The empty string (“”) returns falsy. An easy way to understand this is by using the logical AND operator The logical AND operator If the first object is falsy, it r…
onKeyDown / onKeyUp listener in React
I am trying to add an event listener to an icon in React and it’s not working. My code: I also have an onClick handler on the same button that functions just fine, so I’m really confused as to why the onKeyDown doesn’t fire. Appreciate any help anyone can provide! Answer Using onKeyDown on a…
The “original” argument must be of type function. Received an instance of Object
I used to have this: Then I refactored to this (or at least my attempt to here): Now I am getting the error TypeError: The “original” argument must be of type function. Received an instance of Object on the exec in util.promisify Not sure how to quite get this working like it was but with this new…
Can’t get single item to delete by id from mongoDB in nextjs app
I’m making a todo app in nextjs to practice, and I am having a hard time getting single todos to delete from the database using the deleteOne function. Here is the call from the front end: and here is the handling of the DELETE method: and the deleteTodo helper function it calls: I can get it to delete …
plotly js Uncaught TypeError: myPlot.on is not a function
I’m a newbie trying to learn. I have modified the plot code at plotly hover events The goal is to obtain hover events so that later I can show an image in a modal. My CSV does read in, and the plot does show in the browser. I get an error message: “Uncaught TypeError: myPlot.on is not a function&#…
Command ‘Solidity: Compile Contract’ resulted in an error (Cannot read properties of undefined(reading ‘uri’))
Good day everyone, I am working on a lottery smart contract. I am currently done with the remix VM tests and proceeded with the unit tests with JavaScript. The test.js file is shown below. The test file for now only checks if the contract deploys, pretty simple. However, I have not been able to proceed from h…
album art not showing, using express.js, node.js, pug, javascript
I am trying to create a music app that can serve music files to an audio element. Eventually I want a client side ui that can pick a song from a playlist and even offer a possibility of creating your own playlist. It’s a personal project for learning node.js. and just a fun challenge. But right now the …
NestJS and TypeORM Exception Filter: Get Status is not a function
I’m developing an app using NestJS and TypeORM. My goal is to catch TypeORM errors and it could be done using exception filters. But my problem is, I’m encountering this error: (node:345) UnhandledPromiseRejectionWarning: TypeError: exception.getStatus is not a function This is similar to this git…