Worth noting that the author claims to get lots of job offers but is not able to "create an array" in a language of their choice from memory.
I think it's actually worth noting that you can be a very valuable developer and not remember minutiae.
For example, in the last few days I wrote in C++, Python and JS. Do you think my fingers always typed the right type of bracket to create an array as I jumped between the languages? Who cares.