I am trying to create a React hook that will detect if the user has just refreshed the page. The hook should return true only on the first interaction after the page refresh. On subsequent mounts or interactions, it should…
I study performance of C code. OS is Windows 10. Suddenly I found that the same code runs 2x faster if I use local variables against the same code with global variables. I can't understand why. Tested both in Visual…
I often times easily implemented event delegation with the "click" event on parent elements of something with code like HTML: <div> <span> <input type="radio" id="all0" name="difficulty-ask" class="difficultyaskclass" value="all" checked="checked" /> <label for="all0">All</label> <input type="radio" id="2easy1" name="difficulty-ask" class="difficultyaskclass" value="easy" /> <label…
I have a Google spreadsheet that is used concurrently by a team of people located in the Philippines, South America and the U.S. The load on the spreadsheet is usually no more than ten people at a time. The spreadsheet…
I want to use Red Hat Display font in my project. Should I download all different variants of the in local repository i.e. RedHatDisplay-Light,RedHatDisplay-Regular, RedHatDisplay-SemiBold etc. and then use next/font/local to optimize it or should I use 'import Red_Hat_Display from…
I have two SQL queries like this for postgresql: The first query is fetching subscriptions that were never synced or that were updated recently and synced a long time ago: SELECT * FROM subscriptions WHERE (last_sync_at IS NULL OR last_sync_at…
I’m working on a Go project using GORM and MySQL. I need to retrieve a list of IDs from a specific entity in the database and am considering two approaches to achieve this. I’d like to know which one is…
I’m working on a React application, and I have a component that renders a list of items. I’ve noticed that as the list grows, the component’s performance degrades. Here’s the code for the component import React, { useState, useEffect }…
Is there any difference in terms of performance between if (variable == null) ... and if (variable case null) ... How compiler handles this? Does case work more like const? Also, what about case vs is?
Given an arbitrary async function in Node.js, is there any way to properly measure the CPU usage of that function, including all of its async microtasks? I thought async_hooks was the way to do this, but I'm not sure how…