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Add more exhaustive example on customized-loader #897

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merged 2 commits into from Mar 29, 2023
Merged

Add more exhaustive example on customized-loader #897

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docs(customized-loader): add more exhaustive example on customized-lo…
comoser Mar 18, 2021
1a8f1a4
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JLHwung Mar 29, 2023
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11 changes: 6 additions & 5 deletions README.md
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Expand Up @@ -319,7 +319,8 @@ your `custom` callback function.
```js
// Export from "./my-custom-loader.js" or whatever you want.
module.exports = require("babel-loader").custom(babel => {
function myPlugin() {
// Extract the custom options in the custom plugin
function myPlugin(api, { opt1, opt2 }) {
return {
visitor: {},
};
Expand All @@ -338,7 +339,7 @@ module.exports = require("babel-loader").custom(babel => {
},

// Passed Babel's 'PartialConfig' object.
config(cfg) {
config(cfg, { customOptions }) {
if (cfg.hasFilesystemConfig()) {
// Use the normal config
return cfg.options;
Expand All @@ -349,8 +350,8 @@ module.exports = require("babel-loader").custom(babel => {
plugins: [
...(cfg.options.plugins || []),

// Include a custom plugin in the options.
myPlugin,
// Include a custom plugin in the options and passing it the customOptions object.
[myPlugin, customOptions],
],
};
},
Expand Down Expand Up @@ -385,7 +386,7 @@ Given the loader's options, split custom options out of `babel-loader`'s
options.


### `config(cfg: PartialConfig): Object`
### `config(cfg: PartialConfig, options: { source, customOptions }): Object`

Given Babel's `PartialConfig` object, return the `options` object that should
be passed to `babel.transform`.
Expand Down