Thomas Preißler

software developer, addicted to KISS

[Thomas Preißler @TheThomasPr]

Leveraging the Power of JavaScript Generator Functions: Keep Database Batch Operations clean and maintainable

➡️ https://t.co/h1kZdBLyeF

#javascript #cleancode

[Thomas Preißler @TheThomasPr]

@mattpocockuk Thanks for the update! It's amazing how you solve such difficult tasks in no time.

[Thomas Preißler @TheThomasPr]

@mattpocockuk You're right. But without restricting it, grouping by a nested object would give "[object Object]" as the single key of the result.

https://t.co/yUMUQtISjB

[Thomas Preißler @TheThomasPr]

@mattpocockuk To simplify the type castings, you can define TObj as Record<string, PropertyKey> instead of using <string, unknown>.

[Thomas Preißler @TheThomasPr]

Integrate #OpenTelemetry into a #Java #Quarkus #microservice to send distributed traces to #AWS #XRay. No javaagent is needed and it supports the Quarkus native mode. #Observability for the entire infrastructure.

➡️https://t.co/qZhum6DFdI

[Thomas Preißler @TheThomasPr]

Software development is like art: only the work of skilled masters will last for years.

[Thomas Preißler @TheThomasPr]

In the past I used the HTTP header "Content-Disposition" to instruct the browser to download a file. I ended up doing this because I knew of no other way for this.

Until today.

I discovered, that the anchor-element has a "download" attribute. 🤯

➡️ https://t.co/eL7q5qWguV

[Thomas Preißler @TheThomasPr]

Testing #TypeScript Definitions

TypeScript type definitions can be quite complex. They need to be tested to avoid mistakes during implementation and refactoring.

➡️ https://t.co/wserEYnW6O

Thanks to @mpocock1 and @satya164 for pointing this out to me.

[Thomas Preißler @TheThomasPr]

@heinzkabutz In fact, the code is really bad for readers. Just swapping variables out of the for-loop would help a lot for readability.

[Thomas Preißler @TheThomasPr]

@heinzkabutz It was hard to write, so it should be hard to read.

[Thomas Preißler @TheThomasPr]

@satya164 @mpocock1 @ts Oh, this is indeed very useful. I did not know that. :)
I updated the playground with ts-expect-error as reference: https://t.co/4Nu8nAZVLM

I will also take a closer look at the expect-type lib. Seems very promising.

[Thomas Preißler @TheThomasPr]

Hey @mpocock1! Is there any way to write unit tests for TypeScript definitions?
Let's take the example you shared:
https://t.co/YdsvznmzBq
I would like to have a test so that if someone refactors the "type Percent" and accidentally allows 09%, they are notified of this error.

[Thomas Preißler @TheThomasPr]

It happens to the best. #AWS #xray

[Thomas Preißler @TheThomasPr]

Fix translation issues at compile time with #TypeScript
➡️ TypeScript Playground: https://t.co/0DpUA7m4hG
➡️ Blog Post with explanations: https://t.co/1PZM2gn3tb

[Thomas Preißler @TheThomasPr]

I would love to see such powerful language features in #Java as well.

[Thomas Preißler @TheThomasPr]

Fix translation issues at compile time with #TypeScript
➡️ TypeScript Playground: https://t.co/0DpUA7m4hG
➡️ Blog Post with explanations: https://t.co/1PZM2gn3tb

[Thomas Preißler @TheThomasPr]

Thanks to @mpocock1 for teaching me such #TypeScript magic. 🪄

[NTT DATA DACH @NTT_DATA_DE]

Noch 4 Wochen bis zur JAX – und wir sind wieder dabei! Unser erfahrenes Team aus Technologie-Experten wartet schon darauf, sich mit euch vor Ort praxisnah rund um #Java #Cloud #DevOps #Microservices auszutauschen. Mehr Infos zum Event: https://t.co/mXFg4ORIr6
#jaxcon #nttdata

[Thomas Preißler @TheThomasPr]

#nttdata is one of the top contributors to #Java

[David Delabassée @delabassee]

I'm just going to leave this here #Java #OpenJDK

[Ryan Bates @rbates]

Every new feature, every new dependency, and every new line of code has a maintenance cost that can sometimes outweigh the initial development cost.

[Thomas Preißler @TheThomasPr]

Implementing a timeline with scrolling and zooming - or how I failed at elementary school math

https://t.co/BRyQNDtX8J

#lessonlearned #cleancode #javascript #flexbox