Understanding in-place broadcasting syntax (.=)

[sijo]

@uniment

Writing z .= [1,2,3] is similar. It looks deceptively similar to z = [1,2,3], but they’re two different things: the former updates the stored values in-place, while the latter (re)assigns the identifier entirely.

Except for DataFrames (see What if `df.col .= v` was in-place?)