Julia correctness issues raised in "Why I no longer recommend Julia"

Yuri Vishnevsky has raised several correctness issues in his blog post Why I no longer recommend Julia. I was curious what has changed since. Tested 7 such issues.

• In each issue, I will first paste the screenshot from the original post, then repeat the code in Jupyter.
• Conclusion is six have been solved. The 7th regarding “sum!, prod!, any!, and all!” is more of a programming preference, because I would be careful to use these mutating functions on the same object.