String.replace_prefix
You're seeing just the function
replace_prefix
, go back to String module for more information.
Specs
Replaces prefix in string
by replacement
if it matches match
.
Returns the string untouched if there is no match. If match
is an empty
string (""
), replacement
is just prepended to string
.
Examples
iex> String.replace_prefix("world", "hello ", "")
"world"
iex> String.replace_prefix("hello world", "hello ", "")
"world"
iex> String.replace_prefix("hello hello world", "hello ", "")
"hello world"
iex> String.replace_prefix("world", "hello ", "ola ")
"world"
iex> String.replace_prefix("hello world", "hello ", "ola ")
"ola world"
iex> String.replace_prefix("hello hello world", "hello ", "ola ")
"ola hello world"
iex> String.replace_prefix("world", "", "hello ")
"hello world"