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6 年之前 | |
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| .. | ||
| lib | 6 年之前 | |
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| README.md | 6 年之前 | |
| package-lock.json | 6 年之前 | |
| package.json | 6 年之前 | |
README.md
babel-traverse
babel-traverse maintains the overall tree state, and is responsible for replacing, removing, and adding nodes.
Install
$ npm install --save babel-traverse
Usage
We can use it alongside Babylon to traverse and update nodes:
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";
}
}
});