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refactor: clean up Node.js cli arg parsing (#39465)

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* refactor: clean up Node.js arg parsing

* chore: feedback from review
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Shelley Vohr 2023-08-15 20:49:21 +02:00 • committed by GitHub
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12
docs/api/command-line-switches.md
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@ -116,14 +116,20 @@ Ignore the connections limit for `domains` list separated by `,`.
### --js-flags=`flags`
Specifies the flags passed to the Node.js engine. It has to be passed when starting
Electron if you want to enable the `flags` in the main process.
Specifies the flags passed to the [V8 engine](https://v8.dev). In order to enable the `flags` in the main process,
this switch must be passed on startup.
```sh
$ electron --js-flags="--harmony_proxies --harmony_collections" your-app
```
See the [Node.js documentation][node-cli] or run `node --help` in your terminal for a list of available flags. Additionally, run `node --v8-options` to see a list of flags that specifically refer to Node.js's V8 JavaScript engine.
Run `node --v8-options` or `electron --js-flags="--help"` in your terminal for the list of available flags. These can be used to enable early-stage JavaScript features, or log and manipulate garbage collection, among other things.
For example, to trace V8 optimization and deoptimization:
```sh
$ electron --js-flags="--trace-opt --trace-deopt" your-app
```
### --lang