---
title: "Semla (@Semla) | Hashnode"
description: "Semla (@Semla) writes on Hashnode. Read their latest articles and follow their work."
url: "https://hashnode.com/@Semla"
---

@Semla

# Semla

@Semla · Joined March 2023

### [CORS chaos, or to CORS or not to CORS](https://semla.hashnode.dev/cors-chaos-or-to-cors-or-not-to-cors?utm_source=hashnode&utm_medium=feed)

Setting up CORS can be a hassle. If you deploy your endpoint to the same domain as your frontend, you can just skip it.

2 min read · [semla.hashnode.dev](https://semla.hashnode.dev/cors-chaos-or-to-cors-or-not-to-cors?utm_source=hashnode&utm_medium=feed)

[Mar 22, 2023](https://hashnode.com/posts/cors-chaos-or-to-cors-or-not-to-cors/641af8ab48c65cfcef934203)

### [Show loading animation at the right place in a list of links](https://semla.hashnode.dev/show-loading-animation-at-the-right-place-in-a-list-of-links?utm_source=hashnode&utm_medium=feed)

A loading animation is easy to set up in Angular by subscribing to router events. But how do you show it by the clicked link in a list of links?I scratched my tired head, which eventually came up with a solution When the user clicks a link, and the ...

2 min read · [semla.hashnode.dev](https://semla.hashnode.dev/show-loading-animation-at-the-right-place-in-a-list-of-links?utm_source=hashnode&utm_medium=feed)

[Mar 19, 2023](https://hashnode.com/posts/show-loading-animation-at-the-right-place-in-a-list-of-links/641729dbf058b3f6815763e6)

### [Matrix vs Query, the advantage of matrix parameters](https://semla.hashnode.dev/matrix-vs-query-the-advantage-of-matrix-parameters?utm_source=hashnode&utm_medium=feed)

In Angular you can choose to use matrix parameters. While the name sounds a lot more inspiring than the more common query parameters, matrix parameters also have one feature that makes them better. The first time I saw matrix parameters was in Angula...

2 min read · [semla.hashnode.dev](https://semla.hashnode.dev/matrix-vs-query-the-advantage-of-matrix-parameters?utm_source=hashnode&utm_medium=feed)

[Mar 4, 2023](https://hashnode.com/posts/matrix-vs-query-the-advantage-of-matrix-parameters/64036e67ba7d67b5d32e3f9a)

### [Pub/sub Sisyfos stupidities](https://semla.hashnode.dev/pubsub-sisyfos-stupidities?utm_source=hashnode&utm_medium=feed)

In a project using Google cloud functions I recently got billed 10 times the normal amount. Turns out the delinquent is the pub/sub system. Googles pub/sub system is a very handy way to execute background tasks. Since you want the Cloud function to f...

2 min read · [semla.hashnode.dev](https://semla.hashnode.dev/pubsub-sisyfos-stupidities?utm_source=hashnode&utm_medium=feed)

[Mar 3, 2023](https://hashnode.com/posts/pubsub-sisyfos-stupidities/6401ba406b6452b589303650)