Since a lot of the manipulation that happens inside of pipelines are happening to strings, this library provides a String helper class.

This helper class curries all of the functions that are available on a string instance in reverse order.

For Example

>>> from functional_pipeline import String

>>> String.startswith('H')('Hello World!') == 'Hello World!'.startswith('H')
True

>>> String.endswith('!')('Hello World!') == 'Hello World!'.endswith('!')
True

These curried functions allow for easy use inside of pipelines:

>>> from functional_pipeline import pipeline, String

>>> words = ['this', 'that', 'other', 'foo', 'bar']

>>> starts_with_t = pipeline(
...     words,
...     [
...         (filter, String.startswith('t')),
...         list,
...     ]
... )

>>> starts_with_t
['this', 'that']

Available Methods on String

• capitalize
• casefold
• center
• count
• encode
• endswith
• expandtabs
• find
• format
• index
• isalnum
• isalpha
• isdecimal
• isidentifier
• islower
• isnumeric
• isprintable
• isspace
• istitle
• isupper
• join
• ljust
• lower
• lstrip
• maketrans
• partition
• replace
• rfind
• rindex
• rpartition
• rsplit
• rstrip
• split
• splitlines
• startswith
• swapcase
• title
• translate
• upper
• zfill