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| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/@babel/traverse/README.md | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/@babel/traverse/README.md')
| -rw-r--r-- | node_modules/@babel/traverse/README.md | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/node_modules/@babel/traverse/README.md b/node_modules/@babel/traverse/README.md new file mode 100644 index 00000000..a25ffe70 --- /dev/null +++ b/node_modules/@babel/traverse/README.md @@ -0,0 +1,33 @@ +# @babel/traverse + +> @babel/traverse maintains the overall tree state, and is responsible for replacing, removing, and adding nodes. + +## Install + +```sh +$ npm install --save @babel/traverse +``` + +## Usage + +We can use it alongside Babylon to traverse and update nodes: + +```js +import * as babylon from "babylon"; +import traverse from "@babel/traverse"; + +const code = `function square(n) { + return n * n; +}`; + +const ast = babylon.parse(code); + +traverse(ast, { + enter(path) { + if (path.isIdentifier({ name: "n" })) { + path.node.name = "x"; + } + } +}); +``` +[:book: **Read the full docs here**](https://github.com/thejameskyle/babel-handbook/blob/master/translations/en/plugin-handbook.md#babel-traverse) |
