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102 lines
3.5 KiB
Markdown
102 lines
3.5 KiB
Markdown
---
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title: "Use Vim as a CoffeeScript IDE"
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categories: [tutorials, blog]
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image: https://img.spacevim.org/51876268-fe526e80-23a2-11e9-8964-01fd62392a1f.png
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description: "A general guide for using SpaceVim as CoffeeScript IDE, including layer configuration, requiems installation and usage."
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type: article
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comments: true
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commentsID: "Use Vim as a CoffeeScript IDE"
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---
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# [Blogs](../blog/) >> Use Vim as a CoffeeScript IDE
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This is a general guide for using SpaceVim as a [CoffeeScript](https://coffeescript.org/) IDE, including layer configuration and usage.
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Each of the following sections will be covered:
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<!-- vim-markdown-toc GFM -->
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- [Enable language layer](#enable-language-layer)
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- [Code completion](#code-completion)
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- [Syntax linting](#syntax-linting)
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- [Jump to test file](#jump-to-test-file)
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- [running code](#running-code)
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- [Code formatting](#code-formatting)
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- [REPL support](#repl-support)
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<!-- vim-markdown-toc -->
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### Enable language layer
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By default `lang#coffeescript` layer is not loaded. To add CoffeeScript language support in SpaceVim,
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you need to enable the `lang#coffeescript` layer. Press `SPC f v d` to open
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SpaceVim configuration file, and add following configuration:
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```toml
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[[layers]]
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name = "lang#coffeescript"
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```
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for more info, you can read the [lang#coffeescript](../layers/lang/coffeescript/) layer documentation.
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### Code completion
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`lang#coffeescript` layer will load the vim-coffeescript plugin automatically, unless overriden in your `init.toml`.
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The completion menu will be opened as you type.
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### Syntax linting
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The checkers layer is enabled by default. This layer provides asynchronous syntax linting via [neomake](https://github.com/neomake/neomake).
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It will run [coffeelint](https://github.com/clutchski/coffeelint) asynchronously.
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The coffeelint is command line lint for coffeescript, currently is maintained by [Shuan Wang](https://github.com/swang).
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To install coffeelint, just run following command in terminal.
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```sh
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npm install -g coffeelint
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```
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Note: if no coffeelint is installed, neomake will ues default command `coffee`.
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### Jump to test file
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SpaceVim use built-in plugin to manager the files in a project,
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you can add a `.project_alt.json` to the root of your project with following content:
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```json
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{
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"src/*.coffee": {"alternate": "test/{}.coffee"},
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"test/*.coffee": {"alternate": "src/{}.coffee"}
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}
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```
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with this configuration, you can jump between the source code and test file via command `:A`.
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### running code
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To run current script, you can press `SPC l r`, and a split windows
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will be openen, the output of the script will be shown in this windows.
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It is running asynchronously, and will not block your vim.
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### Code formatting
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The format layer is also enabled by default, with this layer you can use key binding `SPC b f` to format current buffer.
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Before using this feature, please install coffee-fmt.
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```sh
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npm install -g coffee-fmt
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```
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### REPL support
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Start a `coffee -i` inferior REPL process with `SPC l s i` when edit CoffeeScript file. After the REPL process has been started. you can
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send code to inferior process, all key bindings are begin with `SPC l s` prefix, including sending line, sending selection or even
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send whole buffer.
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