I have some array of products inside filteredProducts variable and wanted to sort them according to the price and newly added products. When using prevState like this without having { } in the callback function, the code runs fine. But when using { } for the prevState callback function like this , it is just …
Javascript – forEach with promise.all not working
I tried to handle promises with for each but not working I assume it will log something because of console.log(result). Why is it not working? It only logs Answer You can try this, Don’t push resolved promise, push the promise.
TypeError: Cannot read property ‘delete’ of undefined
I am getting an error (Cannot read property ‘delete’ of undefined). It’s probably an easy fix but I can’t seem to figure out how to fix it. The error: My code: Answer The problem is that you try to destructure the first parameter of the callback, which is a Message object, and a Messag…
How do you use state variables to make a nested drag and drop in React / Kanban board not working in React
Context: The main issue I am trying to solve is that stopping the propagation on an onDragStart event handler (via e.stopPropagation()) is disabling the drag-drop functionality all together. However, when I try to set a flag in the state, to stop drag-drop events to fire on parent elements; the flag does not …
Phaser 3 How to Access and Affect Player in Collision between 2 Objects Not Involving Player
I am trying to create a grappling hook in Phaser 3. I can successfully shoot the grappling hook at an upward angle away from the player. I need to get the player to move towards the grappling hook when the grappling hook reaches its destination. The problem is that I can’t access the player object in my…
Checking length of element in beforeEach on Cypress
I’m trying to setup my beforeEach to create a new email if none exist before starting my tests, but when I try to count how many emails there are in my beforeEach, it always logs as 0, even if there are more. If I log the count in my it block, it shows the correct count. Does this look correct?
Maximum Call Stack Size exceeded and ENOENT error while using context
I get this error whenever I try to use React context,provider or useContext, any of them causes this On App: On terminal: Answer Path to context is wrong. Basically I import ContextFile.js to index.js, and from index.js access to many things. index.js was importing Context from itself, and not from ContextFil…
How to debug unknown html + js: How to trace what .js is modding html for a specific class?
I am maintaining a web site that does some magic behavior (well, it adds a few characters that are not in the html) to elements tagged: class=”popupover-host” I can’t find this referenced in the css, and so far don’t see it referenced in any .js In the browser, it is pre rendered, and …
JS remove event listener with no condition?
I have the following code As you can see the resize event listener recursively calls setSize(). I did this so that I could handle initial size setup and window resizing in the same function. The problem is that every recurse will add an additional eventListener, rather than replacing the last. So I need to re…
Scroll and let content stick while animating
I’m wondering how to achieve the following scroll animation, Where the STRATEGY and CREATIVE copy dock to the top and then animate while the user scroll, and when the animation is done, the page continue to scroll. Please see page example here: https://www.mrsandmr.com/ What is this called in theory. Th…