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92 lines
1.1 KiB
Markdown
92 lines
1.1 KiB
Markdown
# babel-plugin-minify-replace
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Configurable "search and replace" plugin. Replaces matching nodes in the tree with a given replacement node. For example you can replace `process.NODE_ENV` with `"production"`.
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## Example
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**Options**
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```javascript
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[
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{
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identifierName: "__DEV__",
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replacement: {
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type: "numericLiteral",
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value: 0,
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},
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},
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]
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```
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**In**
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```javascript
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if (!__DEV__) {
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foo();
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}
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if (a.__DEV__) {
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foo();
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}
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```
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**Out**
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```javascript
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if (!0) {
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foo();
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}
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if (a.__DEV__) {
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foo();
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}
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```
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## Installation
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```sh
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npm install babel-plugin-minify-replace
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```
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## Usage
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### Via `.babelrc` (Recommended)
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**.babelrc**
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```json
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// without options
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{
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"plugins": ["minify-replace"]
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}
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```
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```json
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// with options
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{
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"plugins": [
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["minify-replace", {
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"replacements": [{
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"identifierName": "__DEV__",
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"replacement": {
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"type": "booleanLiteral",
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"value": true
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}
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}]
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}]
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]
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}
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```
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### Via CLI
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```sh
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babel --plugins minify-replace script.js
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```
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### Via Node API
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```javascript
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require("@babel/core").transform("code", {
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plugins: ["minify-replace"]
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});
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```
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