{"size": 624, "ext": "scrbl", "max_stars_repo_path": "lens-doc/lens/private/scribblings/guide/built-in.scrbl", "max_stars_repo_name": "AlexKnauth/lens", "max_stars_repo_stars_event_min_datetime": "2015-07-08T12:56:46.000Z", "max_stars_repo_stars_event_max_datetime": "2022-03-17T21:21:54.000Z", "max_issues_repo_path": "lens-doc/lens/private/scribblings/guide/built-in.scrbl", "max_issues_repo_name": "AlexKnauth/lens", "max_issues_repo_issues_event_min_datetime": "2015-07-07T01:47:59.000Z", "max_issues_repo_issues_event_max_datetime": "2019-09-10T18:35:17.000Z", "max_forks_repo_path": "lens-doc/lens/private/scribblings/guide/built-in.scrbl", "max_forks_repo_name": "AlexKnauth/lens", "max_forks_repo_forks_event_min_datetime": "2015-07-07T05:01:29.000Z", "max_forks_repo_forks_event_max_datetime": "2019-07-16T00:37:04.000Z"}
{"max_stars_count": 66, "max_issues_count": 199, "max_forks_count": 11, "avg_line_length": 39.0, "max_line_length": 102, "alphanum_fraction": 0.7612179487}
#lang scribble/manual

@(require lens/private/doc-util/main)

@title[#:tag "built-in-lenses" #:style 'toc]{Lenses on Built-In Datatypes}

This library provides @lens-tech{lenses} for most built-in Racket datatypes. In general, the name of
each lens corresponds to the name of its accessor function with @racket[-lens] appended to the end.
For example, the lens for accessing the first element of a pair is @racket[car-lens], and the lens for
accessing an element of a hash is called @racket[hash-ref-lens].

@local-table-of-contents[]

@include-section["built-in/ordered.scrbl"]
@include-section["built-in/key-value.scrbl"]
