spacemacs/layers/+lang/typescript/README.org

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#+TITLE: TypeScript layer
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[[file:img/TypeScript.png]]
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* Table of Contents :TOC_4_gh:noexport:
- [[#description][Description]]
- [[#install][Install]]
- [[#pre-requisites][Pre-requisites]]
- [[#layer][Layer]]
- [[#notes][Notes]]
- [[#key-bindings][Key bindings]]
- [[#typescript-major-mode][Typescript Major Mode]]
- [[#reference-major-mode][Reference Major Mode]]
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* Description
This layer adds support for TypeScript and TSX editing.
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This layer provides:
- ElDoc
- Auto complete
- Flycheck
- Jump to definition, Jump to type definition
- Find occurrences
- Rename symbol
- Imenu
- linting
- tsx mode
- formatting
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* Install
** Pre-requisites
You will need =node.js v0.12.0= or greater
If you want linting run: =npm install -g typescript= =npm install -g tslint=
If you want formatting run: =npm install -g typescript-formatter=
For best results, make sure that the =auto-completion= (company) and =html= layers are enabled.
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** Layer
To use this configuration layer, add it to your =~/.spacemacs=. You will need to
add =typescript= to the existing =dotspacemacs-configuration-layers= list in this
file.
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#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '(typescript))
#+END_SRC
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If you don't need linting, you can use:
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#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '(
(typescript :variables
typescript-use-tslint nil)))
#+END_SRC
If you need formatting on save:
#+BEGIN_SRC emacs-lisp
(setq-default dotspacemacs-configuration-layers '(
(typescript :variables
typescript-fmt-on-save t)))
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#+END_SRC
** Notes
This layer uses:
- [[https://github.com/ananthakumaran/tide][tide]]
- [[https://github.com/Simplify/flycheck-typescript-tslint][flycheck-typescript-tslint]]
- [[https://github.com/vvakame/typescript-formatter][typescript-formatter]]
*Those tools use configuration files. You can learn more in their documentations.*
Make sure to add [[https://github.com/Microsoft/TypeScript/wiki/tsconfig.json][tsconfig.json]] in the project root folder.
tsserver mangles output sometimes [[https://github.com/Microsoft/TypeScript/issues/2758][issue - #2758]], which will result in json parse error. Try node version 0.12.x if you get this error
Currently tsserver doesn't pickup tsconfig.json file changes. You might need to restart server after editing it.
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* Key bindings
** Typescript Major Mode
| Key Binding | Description |
|-------------+----------------------------------|
| ~SPC m =~ | Reformat the buffer |
| ~SPC m g b~ | jump back |
| ~SPC m g g~ | jump to entity's definition |
| ~SPC m g t~ | jump to entity's type definition |
| ~SPC m g u~ | references |
| ~SPC m h h~ | documentation at point |
| ~SPC m r r~ | rename symbol |
| ~SPC m s r~ | restart server |
** Reference Major Mode
| Key Binding | Description |
|-------------+-------------------------|
| ~C-j~ | find previous reference |
| ~C-k~ | find next reference |
| ~C-l~ | goto reference |