I have a React Native App and have the following function: This above code worked in Expo, but I have a new react native project (not built using expo) and this is failing: I have the following in my package.json file: And my firebase.js file is like so (root directory) Im getting the following error: TypeErr…
Why use of a WeakSet in detecting circular references make sense?
I’m trying to understand the example given by WeakSet documentation here. In the doc it says: The WeakSet is weak, meaning references to objects in a WeakSet are held weakly. If no other references to an object stored in the WeakSet exist, those objects can be garbage collected. Object foo is defined ou…
Remove clicked marker Leaflet
I want to create an interactive map in html/js with Leaflet. I have a function that creates markers on click : Now, I want to remove markers when I click on them. However, I cannot find the way to do that. Is there a way to fetch marker id and remove it with a specific method ? Answer You need
Showing/hiding React components does not maintain internal state
I am trying to hide/show components in React based on some state. The main issue I am facing is to maintain the internal state of the components during hiding and showing. The below is the code that does what I expect and maintains the state of each of the components (Africa, Europe, America, Asia): However, …
How to replace specific links in a webpage using Javascript
I am trying to make a chrome extension script that scans a webpage for specific clickable links, and replaces them with other links if they match. Here is what I have since updating this post with a minimum reproducible example (updated farther below) but it only works for function rewritePage1 which is based…
Not able to connect MongoDB Atlas with Node.js trough Mongoose
I’m trying to connect a Node.js application with MongoDB Atlas trough Mongoose and I’m getting the following error: My code is: I’ve allowed access from every IP on mongodb atlas and when I try to connect directly to atlas everything works fine. Answer For first, you have double quotes in th…
Why hashing the reset password token?
I have this forgot password handler in my Express app. I send an email with a crypto.randomBytes(20).toString(“hex”) token, that I use later to verify the request. It is working perfectly. However, I have seen that people are hashing this token before sending it and storing in the data base, and I…
How to “un-flatten” array or create an array of pairs
I need to group the points of a <polyline> into an array of [x, y] coordinates. Usually SVGPolylineElement items validate with both comma separated values AND space only separated values. I’m working around: I need an ES6 solution to group arrays like shown above. Answer
how to change with javascript
I have a Javascript function that I been dealing with for a few hours, Javascript: HTML: CSS: The <li> tag is meant to act as a button, and it does everything in the function, (changes .svg Icon and plays the music) but the second time I click it again, nothing happens. I also checked the console, and n…
Image hover animation bug on Robin Dela Hover Effect with GSAP CDN
I applied a simple transition effect with the “Robin Dela Hover Effect” plugin. Although it only works fine with TweenMax and ThreeJS cdns, if I add the GSAP cdn the animation turns into an error. When you swipe the mouse over the picture from left to right, it displays the other picture a few sec…