FractionalIndex.find_common_prefix_size

You're seeing just the function find_common_prefix_size, go back to FractionalIndex module for more information.
Link to this function

find_common_prefix_size(a, b)

Link to this function

find_common_prefix_size(a, b, n)

Specs

find_common_prefix_size(String.t(), String.t() | nil, integer()) :: integer()