I load some content containing math with jQuery into my html file. Now I want Mathjax to typeset this new content, but it doesn’t work. This is what my JavaScript code looks like But it only loads the content without applying MathJax. Any suggestions why it is not working? Edit I added a second button w…
Canvas linear gradient taking the value of another input type color field
So I have this simple image editor where I’m using a canvas to draw in a user-selected image and some texts. That is the user can upload an image and then if they want they can add texts or just change the gradient of the image. Right now the app works perfectly fine except there is one issue. How to
React Hooks TypeError: todos is undefined
I am using PERN Stack with bootstrap for styling. So, I want to access my JSON data and show it in the form of todo lists. When I tried using map function I got TypeError: Here is the code: Answer I misspelled my variable. So, the problem was I was writing jsonData.data.todos instead off jsonData.data.toDos .
How do you get the wider context HTML that wraps a given selector code in jQuery or Cheerio js?
How do you get the entire HTML of h1 + ul > li > details > summary + p only if it has that structure? i.e. it wouldn’t get the HTML of a ul tag element if it doesn’t have a nested li, details etc. Answer Like this?
Convert Array in Map or 2D Array
So I basically have a gradebook that is a .csv file and is formatted like this name, grade name, grade I am looking for the best way to split my array so that I can access each independently but they are still related to each other. This is my current code so it currently splits the original text into the
Change placeholder text every two seconds in React
I’m trying to change the set state value every two seconds and can run in a loop but that does not seem to work with the below logic. Excerpt from my code When I try to console log the state, I get three values at a time after two seconds. How can I set the state every two seconds and
How to invert a nested object of objects
I’d like to learn how to convert a nested object into a new one by rearranging this structure: So that it follows this structure: Thanks Answer You can grab the entires of your object and use .reduce() to build a new object from the [[key, value], …] entry array. For each [key, value] you can iter…
RXJS – return observable value when doing a map
I have an array of inputIds where I am doing a map that returns a name and value object. Inside the map, I am calling this.inputService.getInputFieldObject which returns an Observable<InputValue>. How do I return the value of the subscription instead of returning an array of subscription values? So I co…
Send data from a check label
Good day, I’ve the following problem, I’m making a form that I sent the data to a Gmail email, the problem is that when choosing a plan, the page throws an error. The mail arrives without any inconvenience and the selected plan but, the page remains with the error. Here I take the data and organiz…
Node.js: fs.existsSync doesn’t work on Heroku
I have a Heroku app using Node.js and Express, and I want to determine whether or not a certain file exists. However, it seems like the file is never found. I have the following path: The directory structure of my project looks like this: I am doing something wrong here? Or is this a Heroku issue? Answer Ok, …