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:warning: *The Kotlin Multiplatform division-by-zero trap: `12 / 0` behaves differently on every platform*

On Kotlin/JS, `12 / 0` silently returns `0`. On JVM and Native it throws `ArithmeticException`. That guard you wrote and tested on JVM? It is silently bypassed when the same code runs on JS.

We wrote a short post about what causes this and how the `Integer` type in Kotools Types 5.1.1 fixes it consistently across all three targets — including null-safe `divOrNull` and `remOrNull` variants for those who prefer not to catch exceptions.

<https://github.com/kotools/types/discussions/996|Read it here> :point_down:

TIL. Thanks, Out of curiosity, shouldn't this be considered a bug of K/JS? Is there a ticket open in Koltin's YouTrack?

<https://youtrack.jetbrains.com/issue/KT-17719/JS-integer-division-by-zero-does-not-throw-exception>

What's the behavior of WASM? Just curious.

exception, because wasm has actual ints. JS doesn't, everything is a Number (Double)

you can easily try it out for yourself
<https://pl.kotl.in/XCdt-SsbQ>
<https://pl.kotl.in/c5NndZ0Jy>