#+title:    :lang javascript
#+subtitle: all(hope(abandon(ye(who(enter(here))))))
#+created:  January 16, 2017
#+since:    1.3

* Description :unfold:
This module adds [[https://www.javascript.com/][JavaScript]] and [[https://www.typescriptlang.org/][TypeScript]] support to Doom Emacs.

- Code completion ([[doom-package:tide]])
- REPL support ([[doom-package:nodejs-repl]])
- Refactoring commands ([[doom-package:js2-refactor]])
- Syntax checking ([[doom-package:flycheck]])
- Browser code injection with [[doom-package:skewer-mode]]
- Coffeescript & JSX support
- Jump-to-definitions and references support ([[doom-package:xref]])

** Maintainers
- [[doom-user:][@elken]]
- [[doom-user:][@hlissner]]
- [[doom-user:][@iyefrat]]

[[doom-contrib-maintainer:][Become a maintainer?]]

** Module flags
- +lsp ::
  Enable LSP support for ~js2-mode~, ~rjsx-mode~, JS in ~web-mode~, and
  ~typescript-mode~. Requires [[doom-module::tools lsp]] and a langserver (supports ts-ls and
  deno-ls).
- +tree-sitter ::
  Leverages tree-sitter for better syntax highlighting and structural text
  editing. Requires [[doom-module::tools tree-sitter]].

** Packages
- [[doom-package:js2-refactor]]
- [[doom-package:nodejs-repl]]
- [[doom-package:npm-mode]]
- [[doom-package:rjsx-mode]]
- [[doom-package:skewer-mode]] (DEPRECATED)
- [[doom-package:tide]]
- [[doom-package:typescript-mode]]
- [[doom-package:xref-js2]] if [[doom-module::tools lookup]]

** TODO Hacks
#+begin_quote
 󱌣 This module's hacks haven't been documented yet. [[doom-contrib-module:][Document them?]]
#+end_quote

** TODO Changelog
# This section will be machine generated. Don't edit it by hand.
/This module does not have a changelog yet./

* Installation
[[id:01cffea4-3329-45e2-a892-95a384ab2338][Enable this module in your ~doom!~ block.]]

This module requires [[https://nodejs.org/en/][NodeJS]] and one of [[https://www.npmjs.com/][NPM]] or [[https://yarnpkg.com/][Yarn]] in your =$PATH=.

- MacOS: ~$ brew install node~
- Arch Linux: ~$ pacman --needed --noconfirm -S nodejs npm~
- openSUSE: ~$ zypper install nodejs npm~

** Formatter

Formatting is handled using the [[doom-module::editor format]] module via [[https://prettier.io/docs/en/install.html][prettier]].

* TODO Usage
#+begin_quote
 󱌣 /This module's usage documentation is incomplete./ [[doom-contrib-module:][Complete it?]]
#+end_quote

~rjsx-mode~ is used for all javascript buffers.

** Commands
*** rjsx-mode
| command                          | key / ex command | description                                                |
|----------------------------------+------------------+------------------------------------------------------------|
| ~+javascript/open-repl~          | ~:repl~          | Open the NodeJS REPL (or send the current selection to it) |
| ~+javascript/skewer-this-buffer~ | [[kbd:][<localleader> S]]  | Attaches a browser to the current buffer                   |

*** Tide
| command                 | key / ex command    | description            |
|-------------------------+---------------------+------------------------|
| ~tide-restart-server~   | [[kbd:][<localleader> R]]     | Restart tide server    |
| ~tide-reformat~         | [[kbd:][<localleader> f]]     | Reformat region        |
| ~tide-rename-symbol~    | [[kbd:][<localleader> r r s]] | Rename symbol at point |
| ~tide-organize-imports~ | [[kbd:][<localleader> r o i]] | Organize imports       |

*** Refactoring (js2-refactor-mode)
| command                                           | key / ex command    | description                                                                                                        |
|---------------------------------------------------+---------------------+--------------------------------------------------------------------------------------------------------------------|
| ~js2r-expand-node-at-point~                       | [[kbd:][<localleader> r e e]] | Expand bracketed list according to node type at point                                                              |
| ~js2r-contract-node-at-point~                     | [[kbd:][<localleader> r c c]] | Contract bracketed list according to node type at point                                                            |
| ~js2r-extract-function~                           | [[kbd:][<localleader> r e f]] | Extracts the marked expressions out into a new named function.                                                     |
| ~js2r-extract-method~                             | [[kbd:][<localleader> r e m]] | Extracts the marked expressions out into a new named method in an object literal.                                  |
| ~js2r-toggle-function-expression-and-declaration~ | [[kbd:][<localleader> r t f]] | Toggle between function name() {} and var name = function ();                                                      |
| ~js2r-toggle-arrow-function-and-expression~       | [[kbd:][<localleader> r t a]] | Toggle between function expression to arrow function.                                                              |
| ~js2r-toggle-function-async~                      | [[kbd:][<localleader> r t s]] | Toggle between an async and a regular function.                                                                    |
| ~js2r-introduce-parameter~                        | [[kbd:][<localleader> r i p]] | Changes the marked expression to a parameter in a local function.                                                  |
| ~js2r-localize-parameter~                         | [[kbd:][<localleader> r l p]] | Changes a parameter to a local var in a local function.                                                            |
| ~js2r-wrap-buffer-in-iife~                        | [[kbd:][<localleader> r w i]] | Wraps the entire buffer in an immediately invoked function expression                                              |
| ~js2r-inject-global-in-iife~                      | [[kbd:][<localleader> r i g]] | Creates a shortcut for a marked global by injecting it in the wrapping immediately invoked function expression     |
| ~js2r-add-to-globals-annotation~                  | [[kbd:][<localleader> r a g]] | Creates a /*global */ annotation if it is missing, and adds the var at point to it.                                |
| ~js2r-extract-var~                                | [[kbd:][<localleader> r e v]] | Takes a marked expression and replaces it with a var.                                                              |
| ~js2r-extract-let~                                | [[kbd:][<localleader> r e l]] | Similar to extract-var but uses a let-statement.                                                                   |
| ~js2r-extract-const~                              | [[kbd:][<localleader> r e c]] | Similar to extract-var but uses a const-statement.                                                                 |
| ~js2r-inline-var~                                 | [[kbd:][<localleader> r i v]] | Replaces all instances of a variable with its initial value.                                                       |
| ~js2r-rename-var~                                 | [[kbd:][<localleader> r r v]] | Renames the variable on point and all occurrences in its lexical scope.                                            |
| ~js2r-var-to-this~                                | [[kbd:][<localleader> r v t]] | Changes local var a to be this.a instead.                                                                          |
| ~js2r-arguments-to-object~                        | [[kbd:][<localleader> r a o]] | Replaces arguments to a function call with an object literal of named arguments.                                   |
| ~js2r-ternary-to-if~                              | [[kbd:][<localleader> r 3 i]] | Converts ternary operator to if-statement.                                                                         |
| ~js2r-split-var-declaration~                      | [[kbd:][<localleader> r s v]] | Splits a var with multiple vars declared, into several var statements.                                             |
| ~js2r-split-string~                               | [[kbd:][<localleader> r s s]] | Splits a string.                                                                                                   |
| ~js2r-string-to-template~                         | [[kbd:][<localleader> r s t]] | Converts a string into a template string.                                                                          |
| ~js2r-unwrap~                                     | [[kbd:][<localleader> r u w]] | Replaces the parent statement with the selected region.                                                            |
| ~js2r-log-this~                                   | [[kbd:][<localleader> r l t]] | Adds a console.log() statement for what is at point (or region). With a prefix argument, use JSON pretty-printing. |
| ~js2r-debug-this~                                 | [[kbd:][<localleader> r d t]] | Adds a debug() statement for what is at point (or region).                                                         |
| ~js2r-forward-slurp~                              | [[kbd:][<localleader> r s l]] | Moves the next statement into current function, if-statement, for-loop or while-loop.                              |
| ~js2r-forward-barf~                               | [[kbd:][<localleader> r b a]] | Moves the last child out of current function, if-statement, for-loop or while-loop.                                |
| ~js2r-kill~                                       | [[kbd:][<localleader> r k]]   | Kills to the end of the line, but does not cross semantic boundaries.                                              |

*** skewer-mode
**** general
| command                       | key / ex command  | description                           |
|-------------------------------+-------------------+---------------------------------------|
| ~skewer-eval-last-expression~ | [[kbd:][<localleader> s E]] | Evaluate last expression              |
| ~skewer-eval-defun~           | [[kbd:][<localleader> s e]] | Evaluate function definition at point |
| ~skewer-load-buffer~          | [[kbd:][<localleader> s f]] | Load buffer into REPL                 |

**** css
| command                               | key / ex command  | description                   |
|---------------------------------------+-------------------+-------------------------------|
| ~skewer-css-eval-current-declaration~ | [[kbd:][<localleader> s e]] | Evaluate declaration at point |
| ~skewer-css-eval-current-rule~        | [[kbd:][<localleader> s r]] | Evaluate rule at point        |
| ~skewer-css-eval-buffer~              | [[kbd:][<localleader> s b]] | Evaluate buffer               |
| ~skewer-css-clear-all~                | [[kbd:][<localleader> s c]] | Clear all rules               |

**** html
| command                | key / ex command  | description           |
|------------------------+-------------------+-----------------------|
| ~skewer-html-eval-tag~ | [[kbd:][<localleader> s e]] | Evaluate tag at point |

*** npm-mode
| command                         | key / ex command  | description                                                      |
|---------------------------------+-------------------+------------------------------------------------------------------|
| ~npm-mode-npm-init~             | [[kbd:][<localleader> n n]] | Initialize npm project                                           |
| ~npm-mode-npm-install~          | [[kbd:][<localleader> n i]] | Install npm package                                              |
| ~npm-mode-npm-install-save~     | [[kbd:][<localleader> n s]] | Install npm package and save to package.json                     |
| ~npm-mode-npm-install-save-dev~ | [[kbd:][<localleader> n d]] | Install npm package and save to package.json as a dev dependency |
| ~npm-mode-npm-uninstall~        | [[kbd:][<localleader> n u]] | Uninstall npm package                                            |
| ~npm-mode-npm-list~             | [[kbd:][<localleader> n l]] | List npm packages                                                |
| ~npm-mode-npm-run~              | [[kbd:][<localleader> n r]] | Run npm task                                                     |
| ~npm-mode-visit-project-file~   | [[kbd:][<localleader> n v]] | Find file in npm project                                         |

* TODO Configuration
#+begin_quote
 󱌣 This module has no configuration documentation yet. [[doom-contrib-module:][Write some?]]
#+end_quote

* Troubleshooting
/There are no known problems with this module./ [[doom-report:][Report one?]]

* Frequently asked questions
/This module has no FAQs yet./ [[doom-suggest-faq:][Ask one?]]

* TODO Appendix
#+begin_quote
 󱌣 This module has no appendix yet. [[doom-contrib-module:][Write one?]]
#+end_quote
