Elixir

▼ Project version

API Reference
- Modules
Changelog for Elixir v1.18
Getting started
Introduction
Basic types
Lists and tuples
Pattern matching
case, cond, and if
- case
- if
- cond
- Summing up
Anonymous functions
Binaries, strings, and charlists
Keyword lists and maps
Modules and functions
Recursion
- Loops through recursion
- Reduce and map algorithms
Enumerables and Streams
Processes
IO and the file system
alias, require, import, and use
Module attributes
Structs
Protocols
Comprehensions
Sigils
try, catch, and rescue
- Errors
- Throws
- Exits
- After
- Else
- Variables scope
Writing documentation
Optional syntax sheet
- Walk-through
Erlang libraries
Debugging
Cheatsheets
Enum cheatsheet
Anti-patterns
What are anti-patterns?
Code-related anti-patterns
Design-related anti-patterns
Process-related anti-patterns
Meta-programming anti-patterns
Meta-programming
Quote and unquote
Macros
Domain-Specific Languages (DSLs)
Mix & OTP
Introduction to Mix
Simple state management with agents
Client-server communication with GenServer
Supervision trees and applications
Supervising dynamic children
Speeding up with ETS
- ETS as a cache
- Race conditions?
Dependencies and umbrella projects
Task and gen_tcp
Doctests, patterns, and with
Distributed tasks and tags
Configuration and releases
References
Compatibility and deprecations
Gradual set-theoretic types
Library guidelines
Naming conventions
Operators reference
Patterns and guards
Syntax reference
Typespecs reference
Unicode syntax

Kernel
- Sections
- Summary
- Guards
  - */2
  - +/1
  - +/2
  - -/1
  - -/2
  - //2
  - !=/2
  - !==/2
  - </2
  - <=/2
  - ==/2
  - ===/2
  - >/2
  - >=/2
  - abs/1
  - and/2
  - binary_part/3
  - bit_size/1
  - byte_size/1
  - ceil/1
  - div/2
  - elem/2
  - floor/1
  - hd/1
  - in/2
  - is_atom/1
  - is_binary/1
  - is_bitstring/1
  - is_boolean/1
  - is_exception/1
  - is_exception/2
  - is_float/1
  - is_function/1
  - is_function/2
  - is_integer/1
  - is_list/1
  - is_map/1
  - is_map_key/2
  - is_nil/1
  - is_non_struct_map/1
  - is_number/1
  - is_pid/1
  - is_port/1
  - is_reference/1
  - is_struct/1
  - is_struct/2
  - is_tuple/1
  - length/1
  - map_size/1
  - node/0
  - node/1
  - not/1
  - or/2
  - rem/2
  - round/1
  - self/0
  - tl/1
  - trunc/1
  - tuple_size/1
- Functions
  - &&/2
  - **/2
  - ++/2
  - --/2
  - ../0
  - ../2
  - ..///3
  - !/1
  - <>/2
  - =~/2
  - @/1
  - alias!/1
  - apply/2
  - apply/3
  - binary_slice/2
  - binary_slice/3
  - binding/1
  - dbg/2
  - def/2
  - defdelegate/2
  - defexception/1
  - defguard/1
  - defguardp/1
  - defimpl/3
  - defmacro/2
  - defmacrop/2
  - defmodule/2
  - defoverridable/1
  - defp/2
  - defprotocol/2
  - defstruct/1
  - destructure/2
  - exit/1
  - function_exported?/3
  - get_and_update_in/2
  - get_and_update_in/3
  - get_in/1
  - get_in/2
  - if/2
  - inspect/2
  - macro_exported?/3
  - make_ref/0
  - match?/2
  - max/2
  - min/2
  - pop_in/1
  - pop_in/2
  - put_elem/3
  - put_in/2
  - put_in/3
  - raise/1
  - raise/2
  - reraise/2
  - reraise/3
  - send/2
  - sigil_C/2
  - sigil_c/2
  - sigil_D/2
  - sigil_N/2
  - sigil_r/2
  - sigil_S/2
  - sigil_s/2
  - sigil_T/2
  - sigil_U/2
  - sigil_W/2
  - sigil_w/2
  - spawn/1
  - spawn/3
  - spawn_link/1
  - spawn_link/3
  - spawn_monitor/1
  - spawn_monitor/3
  - struct/2
  - struct!/2
  - tap/2
  - then/2
  - throw/1
  - to_charlist/1
  - to_string/1
  - to_timeout/1
  - unless/2
  - update_in/2
  - update_in/3
  - use/2
  - var!/2
  - |>/2
  - ||/2
Kernel.SpecialForms
- Summary
- Functions
  - %/2
  - %{}/1
  - &/1
  - ./2
  - __aliases__/1
  - __block__/1
  - __CALLER__/0
  - __cursor__/1
  - __DIR__/0
  - __ENV__/0
  - __MODULE__/0
  - __STACKTRACE__/0
  - ::/2
  - <<>>/1
  - =/2
  - alias/2
  - case/2
  - cond/1
  - fn/1
  - for/1
  - import/2
  - quote/2
  - receive/1
  - require/2
  - super/1
  - try/1
  - unquote/1
  - unquote_splicing/1
  - with/1
  - ^/1
  - {}/1
Data Types
Atom
- Summary
- Functions
  - to_charlist/1
  - to_string/1
Base
Bitwise
- Sections
  - Guards
- Summary
- Guards
  - &&&/2
  - <<</2
  - >>>/2
  - band/2
  - bnot/1
  - bor/2
  - bsl/2
  - bsr/2
  - bxor/2
  - |||/2
Date
DateTime
- Sections
- Summary
- Types
  - t/0
- Functions
  - add/4
  - after?/2
  - before?/2
  - compare/2
  - convert/2
  - convert!/2
  - diff/3
  - from_gregorian_seconds/3
  - from_iso8601/2
  - from_iso8601/3
  - from_naive/3
  - from_naive!/3
  - from_unix/3
  - from_unix!/3
  - new/4
  - new!/4
  - now/2
  - now!/2
  - shift/3
  - shift_zone/3
  - shift_zone!/3
  - to_date/1
  - to_gregorian_seconds/1
  - to_iso8601/3
  - to_naive/1
  - to_string/1
  - to_time/1
  - to_unix/2
  - truncate/2
  - utc_now/1
  - utc_now/2
Duration
- Sections
  - Shifting
  - Intervals
- Summary
- Types
- Functions
Exception
Float
- Sections
  - Kernel functions
  - Known issues
- Summary
- Types
  - precision_range/0
- Functions
  - ceil/2
  - floor/2
  - max_finite/0
  - min_finite/0
  - parse/1
  - pow/2
  - ratio/1
  - round/2
  - to_charlist/1
  - to_string/1
Function
Integer
- Summary
- Guards
  - is_even/1
  - is_odd/1
- Functions
  - digits/2
  - extended_gcd/2
  - floor_div/2
  - gcd/2
  - mod/2
  - parse/2
  - pow/2
  - to_charlist/2
  - to_string/2
  - undigits/2
JSON
- Sections
  - Encoding
  - Decoding
- Summary
- Types
  - decode_error_reason/0
  - encoder/0
- Functions
Module
NaiveDateTime
- Sections
  - Comparing naive date times
  - Using epochs
- Summary
- Types
  - t/0
- Functions
  - add/3
  - after?/2
  - before?/2
  - beginning_of_day/1
  - compare/2
  - convert/2
  - convert!/2
  - diff/3
  - end_of_day/1
  - from_erl/3
  - from_erl!/3
  - from_gregorian_seconds/3
  - from_iso8601/2
  - from_iso8601!/2
  - local_now/1
  - new/2
  - new/8
  - new!/2
  - new!/8
  - shift/2
  - to_date/1
  - to_erl/1
  - to_gregorian_seconds/1
  - to_iso8601/2
  - to_string/1
  - to_time/1
  - truncate/2
  - utc_now/1
  - utc_now/2
Record
- Sections
  - Types
  - Reflection
- Summary
- Guards
  - is_record/1
  - is_record/2
- Functions
Regex
- Sections
- Summary
- Types
  - t/0
- Functions
  - compile/2
  - compile!/2
  - escape/1
  - match?/2
  - named_captures/3
  - names/1
  - opts/1
  - re_pattern/1
  - recompile/1
  - recompile!/1
  - replace/4
  - run/3
  - scan/3
  - source/1
  - split/3
  - version/0
String
Time
- Sections
  - Comparing times
- Summary
- Types
  - t/0
- Functions
Tuple
- Summary
- Functions
  - delete_at/2
  - duplicate/2
  - insert_at/3
  - product/1
  - sum/1
  - to_list/1
URI
Version
- Sections
  - Versions
  - Requirements
- Summary
- Types
  - build/0
  - major/0
  - minor/0
  - patch/0
  - pre/0
  - requirement/0
  - t/0
  - version/0
- Functions
Version.Requirement
- Summary
- Types
  - t/0
Collections & Enumerables
Access
- Sections
  - Maps and structs
  - Updating nested data structures
- Summary
- Types
- Callbacks
- Functions
  - all/0
  - at/1
  - at!/1
  - elem/1
  - fetch/2
  - fetch!/2
  - filter/1
  - find/1
  - get/3
  - get_and_update/3
  - key/2
  - key!/1
  - pop/2
  - slice/1
Date.Range
- Summary
- Types
  - t/0
Enum
- Summary
- Types
  - acc/0
  - default/0
  - element/0
  - index/0
  - t/0
- Functions
  - all?/1
  - all?/2
  - any?/1
  - any?/2
  - at/3
  - chunk_by/2
  - chunk_every/2
  - chunk_every/4
  - chunk_while/4
  - concat/1
  - concat/2
  - count/1
  - count/2
  - count_until/2
  - count_until/3
  - dedup/1
  - dedup_by/2
  - drop/2
  - drop_every/2
  - drop_while/2
  - each/2
  - empty?/1
  - fetch/2
  - fetch!/2
  - filter/2
  - find/3
  - find_index/2
  - find_value/3
  - flat_map/2
  - flat_map_reduce/3
  - frequencies/1
  - frequencies_by/2
  - group_by/3
  - intersperse/2
  - into/2
  - into/3
  - join/2
  - map/2
  - map_every/3
  - map_intersperse/3
  - map_join/3
  - map_reduce/3
  - max/3
  - max_by/4
  - member?/2
  - min/3
  - min_by/4
  - min_max/2
  - min_max_by/4
  - product/1
  - product_by/2
  - random/1
  - reduce/2
  - reduce/3
  - reduce_while/3
  - reject/2
  - reverse/1
  - reverse/2
  - reverse_slice/3
  - scan/2
  - scan/3
  - shuffle/1
  - slice/2
  - slice/3
  - slide/3
  - sort/1
  - sort/2
  - sort_by/3
  - split/2
  - split_while/2
  - split_with/2
  - sum/1
  - sum_by/2
  - take/2
  - take_every/2
  - take_random/2
  - take_while/2
  - to_list/1
  - uniq/1
  - uniq_by/2
  - unzip/1
  - with_index/2
  - zip/1
  - zip/2
  - zip_reduce/3
  - zip_reduce/4
  - zip_with/2
  - zip_with/3
Keyword
- Sections
- Summary
- Types
  - default/0
  - key/0
  - t/0
  - t/1
  - value/0
- Functions
  - delete/2
  - delete_first/2
  - drop/2
  - equal?/2
  - fetch/2
  - fetch!/2
  - filter/2
  - from_keys/2
  - get/3
  - get_and_update/3
  - get_and_update!/3
  - get_lazy/3
  - get_values/2
  - has_key?/2
  - intersect/3
  - keys/1
  - keyword?/1
  - merge/2
  - merge/3
  - new/0
  - new/1
  - new/2
  - pop/3
  - pop!/2
  - pop_first/3
  - pop_lazy/3
  - pop_values/2
  - put/3
  - put_new/3
  - put_new_lazy/3
  - reject/2
  - replace/3
  - replace!/3
  - replace_lazy/3
  - split/2
  - split_with/2
  - take/2
  - to_list/1
  - update/4
  - update!/3
  - validate/2
  - validate!/2
  - values/1
List
- Sections
  - Charlists
- Summary
- Functions
  - ascii_printable?/2
  - delete/2
  - delete_at/2
  - duplicate/2
  - ends_with?/2
  - first/2
  - flatten/1
  - flatten/2
  - foldl/3
  - foldr/3
  - improper?/1
  - insert_at/3
  - keydelete/3
  - keyfind/4
  - keyfind!/3
  - keymember?/3
  - keyreplace/4
  - keysort/3
  - keystore/4
  - keytake/3
  - last/2
  - myers_difference/2
  - myers_difference/3
  - pop_at/3
  - replace_at/3
  - starts_with?/2
  - to_atom/1
  - to_charlist/1
  - to_existing_atom/1
  - to_float/1
  - to_integer/1
  - to_integer/2
  - to_string/1
  - to_tuple/1
  - update_at/3
  - wrap/1
  - zip/1
Map
- Summary
- Types
  - key/0
  - value/0
- Functions
  - delete/2
  - drop/2
  - equal?/2
  - fetch/2
  - fetch!/2
  - filter/2
  - from_keys/2
  - from_struct/1
  - get/3
  - get_and_update/3
  - get_and_update!/3
  - get_lazy/3
  - has_key?/2
  - intersect/2
  - intersect/3
  - keys/1
  - merge/2
  - merge/3
  - new/0
  - new/1
  - new/2
  - pop/3
  - pop!/2
  - pop_lazy/3
  - put/3
  - put_new/3
  - put_new_lazy/3
  - reject/2
  - replace/3
  - replace!/3
  - replace_lazy/3
  - split/2
  - split_with/2
  - take/2
  - to_list/1
  - update/4
  - update!/3
  - values/1
MapSet
- Summary
- Types
  - internal/1
  - t/0
  - t/1
  - value/0
- Functions
  - delete/2
  - difference/2
  - disjoint?/2
  - equal?/2
  - filter/2
  - intersection/2
  - member?/2
  - new/0
  - new/1
  - new/2
  - put/2
  - reject/2
  - size/1
  - split_with/2
  - subset?/2
  - symmetric_difference/2
  - to_list/1
  - union/2
Range
- Sections
- Summary
- Types
  - limit/0
  - step/0
  - t/0
  - t/2
- Functions
  - disjoint?/2
  - new/2
  - new/3
  - shift/2
  - size/1
  - split/2
  - to_list/1
Stream
- Sections
  - Creating Streams
- Summary
- Types
  - acc/0
  - default/0
  - element/0
  - index/0
  - timer/0
- Functions
  - chunk_by/2
  - chunk_every/2
  - chunk_every/4
  - chunk_while/4
  - concat/1
  - concat/2
  - cycle/1
  - dedup/1
  - dedup_by/2
  - drop/2
  - drop_every/2
  - drop_while/2
  - duplicate/2
  - each/2
  - filter/2
  - flat_map/2
  - from_index/1
  - intersperse/2
  - interval/1
  - into/3
  - iterate/2
  - map/2
  - map_every/3
  - reject/2
  - repeatedly/1
  - resource/3
  - run/1
  - scan/2
  - scan/3
  - take/2
  - take_every/2
  - take_while/2
  - timer/1
  - transform/3
  - transform/4
  - transform/5
  - unfold/2
  - uniq/1
  - uniq_by/2
  - with_index/2
  - zip/1
  - zip/2
  - zip_with/2
  - zip_with/3
IO & System
File
- Sections
- Summary
- Types
- Functions
  - cd/1
  - cd!/1
  - cd!/2
  - chgrp/2
  - chgrp!/2
  - chmod/2
  - chmod!/2
  - chown/2
  - chown!/2
  - close/1
  - copy/3
  - copy!/3
  - cp/3
  - cp!/3
  - cp_r/3
  - cp_r!/3
  - cwd/0
  - cwd!/0
  - dir?/2
  - exists?/2
  - ln/2
  - ln!/2
  - ln_s/2
  - ln_s!/2
  - ls/1
  - ls!/1
  - lstat/2
  - lstat!/2
  - mkdir/1
  - mkdir!/1
  - mkdir_p/1
  - mkdir_p!/1
  - open/2
  - open/3
  - open!/2
  - open!/3
  - read/1
  - read!/1
  - read_link/1
  - read_link!/1
  - regular?/2
  - rename/2
  - rename!/2
  - rm/1
  - rm!/1
  - rm_rf/1
  - rm_rf!/1
  - rmdir/1
  - rmdir!/1
  - stat/2
  - stat!/2
  - stream!/2
  - stream!/3
  - touch/2
  - touch!/2
  - write/3
  - write!/3
  - write_stat/3
  - write_stat!/3
File.Stat
- Summary
- Types
  - t/0
- Functions
  - from_record/1
  - to_record/1
File.Stream
- Summary
- Types
  - t/0
IO
- Sections
  - IO devices
  - IO data
- Summary
- Types
- Functions
  - binread/2
  - binstream/0
  - binstream/2
  - binwrite/2
  - chardata_to_string/1
  - getn/2
  - getn/3
  - gets/2
  - inspect/2
  - inspect/3
  - iodata_length/1
  - iodata_to_binary/1
  - puts/2
  - read/2
  - stream/0
  - stream/2
  - warn/1
  - warn/2
  - write/2
IO.ANSI
IO.Stream
- Summary
- Types
  - t/0
OptionParser
- Summary
- Types
  - argv/0
  - errors/0
  - options/0
  - parsed/0
- Functions
  - next/2
  - parse/2
  - parse!/2
  - parse_head/2
  - parse_head!/2
  - split/1
  - to_argv/2
Path
- Summary
- Types
  - t/0
- Functions
  - absname/1
  - absname/2
  - basename/1
  - basename/2
  - dirname/1
  - expand/1
  - expand/2
  - extname/1
  - join/1
  - join/2
  - relative/1
  - relative_to/3
  - relative_to_cwd/2
  - rootname/1
  - rootname/2
  - safe_relative/2
  - safe_relative_to/2
  - split/1
  - type/1
  - wildcard/2
Port
- Sections
- Summary
- Types
  - name/0
- Functions
  - close/1
  - command/3
  - connect/2
  - demonitor/2
  - info/1
  - info/2
  - list/0
  - monitor/1
  - open/2
StringIO
- Sections
  - Examples
- Summary
- Functions
  - close/1
  - contents/1
  - flush/1
  - open/2
  - open/3
System
- Sections
  - Time
- Summary
- Types
  - signal/0
  - time_unit/0
- Functions
  - argv/0
  - argv/1
  - at_exit/1
  - build_info/0
  - cmd/3
  - compiled_endianness/0
  - convert_time_unit/3
  - cwd/0
  - cwd!/0
  - delete_env/1
  - endianness/0
  - fetch_env/1
  - fetch_env!/1
  - find_executable/1
  - get_env/0
  - get_env/2
  - get_pid/0
  - halt/1
  - monotonic_time/0
  - monotonic_time/1
  - no_halt/0
  - no_halt/1
  - os_time/0
  - os_time/1
  - otp_release/0
  - pid/0
  - put_env/1
  - put_env/2
  - restart/0
  - schedulers/0
  - schedulers_online/0
  - shell/2
  - stacktrace/0
  - stop/1
  - system_time/0
  - system_time/1
  - time_offset/0
  - time_offset/1
  - tmp_dir/0
  - tmp_dir!/0
  - trap_signal/3
  - unique_integer/1
  - untrap_signal/2
  - user_home/0
  - user_home!/0
  - version/0
Calendar
Calendar
Calendar.ISO
Calendar.TimeZoneDatabase
Calendar.UTCOnlyTimeZoneDatabase
Processes & Applications
Agent
- Sections
- Summary
- Types
  - agent/0
  - name/0
  - on_start/0
  - state/0
- Functions
  - cast/2
  - cast/4
  - child_spec/1
  - get/3
  - get/5
  - get_and_update/3
  - get_and_update/5
  - start/2
  - start/4
  - start_link/2
  - start_link/4
  - stop/3
  - update/3
  - update/5
Application
Config
Config.Provider
Config.Reader
- Sections
  - As a provider
- Summary
- Functions
DynamicSupervisor
GenServer
Node
- Summary
- Types
  - state/0
  - t/0
- Functions
  - alive?/0
  - connect/1
  - disconnect/1
  - get_cookie/0
  - list/0
  - list/1
  - monitor/2
  - monitor/3
  - ping/1
  - self/0
  - set_cookie/2
  - spawn/2
  - spawn/3
  - spawn/4
  - spawn/5
  - spawn_link/2
  - spawn_link/4
  - spawn_monitor/2
  - spawn_monitor/4
  - start/3
  - stop/0
PartitionSupervisor
Process
- Sections
  - Aliases
- Summary
- Types
- Functions
  - alias/0
  - alias/1
  - alive?/1
  - cancel_timer/2
  - delete/1
  - demonitor/2
  - exit/2
  - flag/2
  - flag/3
  - get/0
  - get/2
  - get_keys/0
  - get_keys/1
  - group_leader/0
  - group_leader/2
  - hibernate/3
  - info/1
  - info/2
  - link/1
  - list/0
  - monitor/1
  - monitor/2
  - put/2
  - read_timer/1
  - register/2
  - registered/0
  - send/3
  - send_after/4
  - set_label/1
  - sleep/1
  - spawn/2
  - spawn/4
  - unalias/1
  - unlink/1
  - unregister/1
  - whereis/1
Registry
- Sections
- Summary
- Types
  - body/0
  - guard/0
  - guards/0
  - key/0
  - keys/0
  - listener_message/0
  - match_pattern/0
  - meta_key/0
  - meta_value/0
  - registry/0
  - spec/0
  - start_option/0
  - value/0
- Functions
  - child_spec/1
  - count/1
  - count_match/4
  - count_select/2
  - delete_meta/2
  - dispatch/4
  - keys/2
  - lock/3
  - lookup/2
  - match/4
  - meta/2
  - put_meta/3
  - register/3
  - select/2
  - start_link/1
  - unregister/2
  - unregister_match/4
  - update_value/3
  - values/3
Supervisor
Task
Task.Supervisor
Protocols
Collectable
- Sections
  - Why Collectable?
  - Examples
- Summary
- Types
  - command/0
  - t/0
- Functions
  - into/1
Enumerable
- Summary
- Types
  - acc/0
  - continuation/0
  - reducer/0
  - result/0
  - slicing_fun/0
  - t/0
  - t/1
  - to_list_fun/0
- Functions
  - count/1
  - member?/2
  - reduce/3
  - slice/1
Inspect
Inspect.Algebra
- Sections
  - Implementation details
- Summary
- Guards
  - is_doc/1
- Types
  - t/0
- Functions
  - break/1
  - collapse_lines/1
  - color/2
  - color/3
  - color_doc/3
  - concat/1
  - concat/2
  - container_doc/6
  - empty/0
  - flex_break/1
  - flex_glue/3
  - fold/2
  - fold_doc/2
  - force_unfit/1
  - format/2
  - glue/3
  - group/2
  - line/0
  - line/2
  - nest/3
  - next_break_fits/2
  - no_limit/1
  - space/2
  - string/1
  - to_doc/2
Inspect.Opts
JSON.Encoder
- Summary
- Types
  - t/0
- Functions
  - encode/2
List.Chars
- Summary
- Types
  - t/0
- Functions
  - to_charlist/1
Protocol
String.Chars
- Summary
- Types
  - t/0
- Functions
  - to_string/1
Code & Macros
Code
Code.Fragment
Kernel.ParallelCompiler
- Summary
- Types
  - error/0
  - info/0
  - warning/0
- Functions
Macro
Macro.Env
Deprecated
Behaviour
- Summary
- Functions
  - defcallback/1
  - defmacrocallback/1
Dict
- Summary
- Types
  - key/0
  - t/0
  - value/0
- Functions
  - delete/2
  - drop/2
  - empty/1
  - equal?/2
  - fetch/2
  - fetch!/2
  - get/3
  - get_and_update/3
  - get_lazy/3
  - has_key?/2
  - keys/1
  - merge/2
  - merge/3
  - pop/3
  - pop_lazy/3
  - put/3
  - put_new/3
  - put_new_lazy/3
  - size/1
  - split/2
  - take/2
  - to_list/1
  - update/4
  - update!/3
  - values/1
GenEvent
- Sections
  - Alternatives
- Summary
- Types
  - handler/0
  - manager/0
  - name/0
  - on_start/0
  - options/0
- Callbacks
HashDict
- Summary
- Types
  - t/0
- Functions
  - delete/2
  - drop/2
  - equal?/2
  - fetch/2
  - fetch!/2
  - get/3
  - get_and_update/3
  - get_lazy/3
  - has_key?/2
  - keys/1
  - merge/3
  - new/0
  - pop/3
  - pop_lazy/3
  - put/3
  - put_new/3
  - put_new_lazy/3
  - size/1
  - split/2
  - take/2
  - to_list/1
  - update/4
  - update!/3
  - values/1
HashSet
- Summary
- Types
  - t/0
- Functions
  - delete/2
  - difference/2
  - disjoint?/2
  - equal?/2
  - intersection/2
  - member?/2
  - new/0
  - put/2
  - size/1
  - subset?/2
  - to_list/1
  - union/2
Set
- Summary
- Types
  - t/0
  - value/0
  - values/0
- Functions
  - delete/2
  - difference/2
  - disjoint?/2
  - empty/1
  - equal?/2
  - intersection/2
  - member?/2
  - put/2
  - size/1
  - subset?/2
  - to_list/1
  - union/2
Supervisor.Spec
- Sections
  - Example
  - Supervisor and worker options
- Summary
- Types
  - child_id/0
  - modules/0
  - restart/0
  - shutdown/0
  - spec/0
  - strategy/0
  - worker/0
- Functions
Exceptions
ArgumentError
ArithmeticError
BadArityError
BadBooleanError
BadFunctionError
BadMapError
BadStructError
CaseClauseError
Code.LoadError
CompileError
CondClauseError
Enum.EmptyError
Enum.OutOfBoundsError
ErlangError
File.CopyError
File.Error
File.LinkError
File.RenameError
FunctionClauseError
IO.StreamError
Inspect.Error
JSON.DecodeError
Kernel.TypespecError
KeyError
MatchError
MismatchedDelimiterError
MissingApplicationsError
- Sections
  - Examples
- Summary
- Types
  - t/0
OptionParser.ParseError
Protocol.UndefinedError
Regex.CompileError
RuntimeError
- Sections
  - Fields
SyntaxError
System.EnvError
SystemLimitError
TokenMissingError
TryClauseError
URI.Error
UndefinedFunctionError
UnicodeConversionError
Version.InvalidRequirementError
Version.InvalidVersionError
WithClauseError

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