Comment by CmdrKrool
20 hours ago
I'm confused by this:
String operations in Python are fast as well. f-strings are the fastest formatting style, while even the slowest style is still measured in just nano-seconds.
Concatenation (+) 39.1 ns (25.6M ops/sec)
f-string 64.9 ns (15.4M ops/sec)
It says f-strings are fastest but the numbers show concatenation taking less time? I thought it might be a typo but the bars on the graph reflect this too?
String concatenation isn't usually considered a "formatting style", that refers to the other three rows of the table which use a template string and have specialized syntax inside it to format the values.
Perhaps it's because in all but the simplest cases, you need 2 or more concatenations to achieve the same result as one single f-string?
vs
The only case that would be faster is something like: "foo" + str(expression)