152 lines
5.5 KiB
Org Mode
152 lines
5.5 KiB
Org Mode
#+TITLE: React layer
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[[file:img/react.png]]
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* Table of Contents :TOC_4_gh:noexport:
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- [[#description][Description]]
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- [[#features][Features:]]
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- [[#install][Install]]
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- [[#optional-configuration][Optional Configuration]]
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- [[#key-bindings][Key Bindings]]
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- [[#rjsx-mode][rjsx-mode]]
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- [[#formatting-web-beautify][Formatting (web-beautify)]]
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- [[#documentation-js-doc][Documentation (js-doc)]]
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- [[#auto-complete-and-documentation-tern][Auto-complete and documentation (tern)]]
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* Description
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ES6 and JSX ready configuration layer for React
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It will automatically recognize =.jsx= files and files with =react= imported.
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** Features:
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- on-the-fly syntax checking
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- proper syntax highlight and indentation with jsx
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- backend support for autocompletion as in rjsx-mode
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- jsfmt automatic formatting
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- js2-refactor
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- js-doc
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* Install
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To use this configuration layer, add it to your =~/.spacemacs=. You will need to
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add =react= to the existing =dotspacemacs-configuration-layers= list in this
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file.
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React layer uses the same backend defined in javascript layer. Options are =tern= and =lsp=.
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To use the on-the-fly syntax checking, install =eslint= with babel and react
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support:
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#+BEGIN_SRC sh
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$ npm install -g eslint babel-eslint eslint-plugin-react
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#+END_SRC
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If your project do not use a custom =.eslintrc= file I strongly advice you to
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try out this one by Airbnb:
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[[https://github.com/airbnb/javascript/blob/master/linters/.eslintrc][.eslintrc]]
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In order to use automatic code formatting you need to install ~js-beautify~
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with:
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#+BEGIN_SRC sh
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$ npm install -g js-beautify
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#+END_SRC
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If you install these in non-standard locations, then add the following to your
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=dotspacemacs/user-init= function:
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#+BEGIN_SRC elisp
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(add-to-list 'exec-path "/path/to/node/bins" t)
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#+END_SRC
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Be sure to have the ~e4x~ option set to ~true~ on your ~.jsbeautifyrc~ here it
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is my configuration as an example:
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#+BEGIN_SRC json
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{
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"indent_size": 2,
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"indent_char": " ",
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"eol": "\n",
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"indent_level": 0,
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"indent_with_tabs": false,
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"preserve_newlines": true,
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"max_preserve_newlines": 2,
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"jslint_happy": false,
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"space_after_anon_function": false,
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"brace_style": "collapse",
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"keep_array_indentation": false,
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"keep_function_indentation": false,
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"space_before_conditional": true,
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"break_chained_methods": true,
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"eval_code": false,
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"unescape_strings": false,
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"wrap_line_length": 80,
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"wrap_attributes": "auto",
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"wrap_attributes_indent_size": 2,
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"e4x": true,
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"end_with_newline": true
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}
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#+END_SRC
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* Optional Configuration
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You may refer to the =web-mode= configuration for fine tuning the indenting
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behaviour.
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For example to have a consistent 2 spaces indenting both on =js= and =jsx= you
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may use these settings:
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#+begin_src emacs-lisp
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(setq-default
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;; js2-mode
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js2-basic-offset 2
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;; web-mode
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css-indent-offset 2
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web-mode-markup-indent-offset 2
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web-mode-css-indent-offset 2
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web-mode-code-indent-offset 2
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web-mode-attr-indent-offset 2)
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#+end_src
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And if you want to have 2 space indent also for element's attributes,
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concatenations and contiguous function calls:
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#+begin_src emacs-lisp
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(with-eval-after-load 'web-mode
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(add-to-list 'web-mode-indentation-params '("lineup-args" . nil))
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(add-to-list 'web-mode-indentation-params '("lineup-concats" . nil))
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(add-to-list 'web-mode-indentation-params '("lineup-calls" . nil)))
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#+end_src
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* Key Bindings
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** rjsx-mode
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| Key Binding | Description |
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|---------------+----------------------------------------------------------------------------------|
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| ~<~ | inserts </> whenever it would start a new JSX node |
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| ~>~ | right before the slash in a self-closing tag automatically inserts a closing tag |
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| ~SPC m r r t~ | rename tag at point |
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** Formatting (web-beautify)
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| Key Binding | Description |
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|-------------+--------------------------------------------------------------|
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| ~SPC m =~ | beautify code in js2-mode, json-mode, web-mode, and css-mode |
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*** Documentation (js-doc)
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You can check more [[https://github.com/mooz/js-doc/][here]]
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| Key Binding | Description |
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|---------------+---------------------------------------|
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| ~SPC m r d b~ | insert JSDoc comment for current file |
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| ~SPC m r d f~ | insert JSDoc comment for function |
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| ~SPC m r d t~ | insert tag to comment |
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| ~SPC m r d h~ | show list of available jsdoc tags |
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** Auto-complete and documentation (tern)
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| Key Binding | Description |
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|---------------+------------------------------------------------------------------------------------------|
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| ~SPC m C-g~ | brings you back to last place you were when you pressed M-.. |
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| ~SPC m g g~ | jump to the definition of the thing under the cursor |
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| ~SPC m g G~ | jump to definition for the given name |
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| ~SPC m h d~ | find docs of the thing under the cursor. Press again to open the associated URL (if any) |
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| ~SPC m h t~ | find the type of the thing under the cursor |
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| ~SPC m r r V~ | rename variable under the cursor using tern |
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