I have the following useEffect I want to refactor it, removing all these else if lines See the code As you can see the country: GB, DE, FR, BR, US, IT, US, ES and MX sharing the same setIsDisable(false) How would you write in 1 line of code whitout repeating the same else if ? Answer if you want to
Next.js and Express.js give CORS error, API queries only work at build time
I have a project where I use Next.js on the front-end and Express.js on the back. Front-end side The ‘pages’ file contains ‘index.js’. In it, I am sending the following request. Back-end side And here is my Route code : So, When the page is first built with Next.js, the api works, but when I click the ‘Load more’ button,
Map a new key-value pair into an array of objects
I would like to add a new key-value pair to all objects within my data. The structure looks like this: As a new key-value pair, I would like to add “logged-in”: true/false. To get this data, I use another service. And then I map the true/false values into a variable. Then, I would like to push these key-value pairs into
Decode constructor arguments in solidity
I playing Ethernaut Level 8. The goal is to get access to the private password state variable and unlock the contract. I know one could use await contract.unlock(await web3.eth.getStorageAt(contract.address, 1));, but I want to find the password decoding the input data of the contract creation. Here is the contract. I tried await contract.unlock(“f94b476063b6379a3c8b6c836efb8b3e10ede188”) but that didn’t work. Answer If the
Correct way of converting unicode to emoji
I’m using String.formCodePoint to convert Unicode to emoji, but some emojis don’t convert as expected. They display like line icons. Please check the example below, first two emojis render correctly, but the last two don’t. for example: Result: Answer Your code is not correct. Old Emoji are not coloured by default, so you need to add the variation code ‘fe0f`.
Access most recent value in JSON nested object with JS
I’m trying to access the most recent element in the Time Series (5 min) object, without having to specify the date/time, after using this JS code: So in this case (see screenshot) it’s Time Series (5 min) > 2022-04-21 20:00:00 -> 4. close, but I get an undefined error. I even tried in the developer console with the full JSON
Conflict between onmouseover and onmouseout when using inline
I am trying to just get a small css change done based on user moving mouse on or off an element. The onMouseOver event works fine, but when I try to reset the css after the user moves the mouse off using onMouseOut nothing appears to happen. Here is a fiddle: https://jsfiddle.net/2awspkeb/3/ And here is the code: Answer You just
What happens if I use sessionStorage.getItem(“data-theme”); if “data-theme” has not been defined yet?
I grabbed javascript code from the internet that creates a button to toggle dark mode on and off and it works perfectly fine. Here I’ll paste only the relevant chunk of what I’ve written so far: It’s all commented and pretty. You can check it out at pepesito1.github.io/test/general.html. The button works fine. Now what I’m trying to do is add
How to add red required text to an input when the field has not been filled out
I would like to add a red required text on the right side of a text input. I would want it to look similar to this. An email field with the required tag. I apologize for not have code to add, the only things ive tried have been messing with placeholders as i have no idea which direction to go
How can I make sure ajax/jquery calls finish before an html page loads?
I need ‘item_polys’ to be saved into local storage before my corresponding html page loads. I would also settle for a way to reload the html page just one time each time after it loads, so that it will populate correctly. Thanks (and sorry if this has been answered already, I couldn’t quite find what I was looking for when