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Send Image from subdomain Express.js

Lets say I have this for local testing. This gets a file based on a path to the file of course. Now lets say that the img folder is actually the folder to the subdomain, and I wanted to send the image from the subdomain itself, so instead of the api requesting to the main site aka mysite.com, it would

Prevent infinite loop in useEffect when setting state

I am currently building a scheduling app. If a user selects two dates, I am attempting to select all date blocks between the two selected dates in the calendar as well. I am able to achieve this, but it causes my useEffect to fire into an infinite loop because I have state as a dependency in my useEffect wher…

JsFiddle URL with trailing slash being evaluated as correct link

I wrote a small method that evaluates JSFiddle snippet URLs. A valid JSFiddle snippet URL looks like this: https://jsfiddle.net/BideoWego/y200sqpr/ or https://jsfiddle.net/BideoWego/y200sqpr. An invalid URL is anything else. It seems to work well, but for some strange reason it evaluates https://jsfiddle.net/…

Output data from form on the page react

I am writing todo app. There are main files in my directory now: App (rendering main page with header and buttons) TodoForm (create a form) TodoBox (generating list of tasks) And the question is: how I can pass the state from TodoForm to TodoBox in App (it is initialize as an empty array now). I want to outpu…

Detecting iframe removed by parent

I have a web application that is embedded in an iframe by external sites, of which we have no control over. Is there a way to detect when the iframe element has been removed from the dom of the parent, in order to perform some cleanup before it’s gone? It appears to fire a “visibilitychange”…

jQuery fadeIn() called repeatedly not working

This is a part of an JS-scanning function which runs about 3-5 times / sec. Below is what I want to obtain .. but it (obviosly) does not work … because it keeps “resetting” the fadeIn function 3-5 times every second. I could call a seperate function and/or checks with timestamps when it last…