Kristjan ESPERANTO 3335781af4 Remove unnecessary conditionals and fix falsy property check in imperial conversion (#4135)
While removing unnecessary conditionals (for `compliments` reported in
https://github.com/MagicMirrorOrg/MagicMirror/security/code-scanning/27
and for `weather` reported in
https://github.com/MagicMirrorOrg/MagicMirror/security/code-scanning/28),
I noticed a bug in the imperial conversion path: falsy property checks
like `if (imperialWeatherObject.temperature)` silently skip the
conversion when the value is `0`. So at exactly 0 °C, the result would
show `0 °F` instead of the correct `32 °F`.

I wrote unit tests for `convertWeatherObjectToImperial` first, which
confirmed the bug, then fixed it by replacing the falsy checks with the
`in` operator. Which I also find more intuitive to read.

Weather APIs deliver floating point values, so hitting exactly `0.0`
might be rare in practice - more likely `0.1` or `-0.1`, which are
truthy and convert fine. That should explain why it went unnoticed by
users.
2026-05-03 12:49:34 +02:00
2023-07-01 21:17:31 +02:00
2024-03-16 13:06:27 +01:00
2020-05-11 22:22:32 +02:00
2025-09-30 18:14:08 +02:00
2023-10-01 20:13:41 +02:00
2026-02-01 08:22:46 +01:00

MagicMirror²: The open source modular smart mirror platform.

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MagicMirror² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror² allows you to convert your hallway or bathroom mirror into your personal assistant. MagicMirror² is built by the creator of the original MagicMirror with the incredible help of a growing community of contributors.

MagicMirror² focuses on a modular plugin system and uses Electron as an application wrapper. So no more web server or browser installs necessary!

Animated demonstration of MagicMirror²

Documentation

For the full documentation including installation instructions, please visit our dedicated documentation website: https://docs.magicmirror.builders.

Contributing Guidelines

Contributions of all kinds are welcome, not only in the form of code but also with regards to

  • bug reports
  • documentation
  • translations

For the full contribution guidelines, check out: https://docs.magicmirror.builders/about/contributing.html

Enjoying MagicMirror? Consider a donation!

MagicMirror² is Open Source and free. That doesn't mean we don't need any money.

Please consider a donation to help us cover the ongoing costs like webservers and email services. If we receive enough donations we might even be able to free up some working hours and spend some extra time improving the MagicMirror² core.

To donate, please follow this link.

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MagicMirror² is an open source modular smart mirror platform. With a growing list of installable modules, the MagicMirror² allows you to convert your hallway or bathroom mirror into your personal assistant.
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