I wanted to know if browser speed affects the execution time of JavaScript code. For example, if I have this code Does it mean that someone with a 4G connection will get this code executed earlier than someone with a 2G connection Answer No, as I understand it, Java Script is run in your browser and your brow…
Tag: browser
What is the difference between src, public, and build in folder structure?
I know what these files contain like build contains the minified file which is minified from src file. I need to know how browser works with it. I haven’t uploaded my build file to hosting service yet my website got rendered. In the website, <script> SRC was linked to build but there was no build …
Are there any browser-native 360 spin viewers?
There are several plugins for viewing interactive 360-spin images of products, such as this: https://www.ajax-zoom.com/index.php?cid=home&tag=spin360 However, my question is whether there are any current or proposed solutions for this that are browser-native, so don’t require any plugins? One analog…
How to download a ReadableStream on the browser that has been returned from fetch
I am receiving a ReadableStream from a server, returned from my fetch call. A ReadableStream is returned but I don’t know how to trigger a download from this stage. I can’t use the url in an href because it requires an Authorization token. I don’t want to install fs on the client so what opt…
Difference between Web Streams and Node.js Stream APIs
I’m building a file upload application to familiarize myself with the concept of streams. I’m trying to turn a file list or blobs into a stream then upload it to the backend and store it on the file system. I had no issue with frontend and backend implementations respectively but I’m having …
How is Outlook Online downloading attachments?
I’m trying to understand how the “Download All” button works in Office365 Outlook Online when downloading multiple attachments from an email. The button is a “button” type. It does not appear to be part of a form. It has some “click” event listeners (apparently using …
How to detect prefers-color-scheme change in javascript?
I can use window.matchMedia to detect whether user is in dark mode, but how to listen dark mode change event? Is there any API like: Answer You can add an event-listener with callback on the MediaQueryList returned by Window.matchMedia(): Note: There are two method versions to register an event-listener: the …
Is it possible to add a request header to a CORS preflight request?
I have a website that accesses an API from an external server (not the server that serves the website) via a plain XmlHttpRequest (see below). That API requires an API key for accessing the service to be added as request header. However, as these are CORS requests the browser first does a preflight request to…
what is the purpose of chrome-extension inject.js
Hello I have a react project which is working full and functional but when I look into network form console I find an unexpected script called chrome-extension://gppongmhjkpfnbhagpmjfkannfbllamg/js/inject.js which is not associated with my project. Is that a virus or an extension ?? In my chrome://extensions/…
Browser is cancelling multiple file download requests
I am trying to download multiple files that the user has selected for download. However, the browser is cancelling all but last download request. If I am increasing the delay between the requests to say about 1 second, then those files get downloaded, but even in this case, sometimes some files are missed. Th…