Set Webpack `mode` from what? about jsbundling-rails HOT 8 CLOSED

FWIW I've set my Webpack config as

const mode = (process.env.RAILS_ENV === "production" ? "production" : "development")

module.exports = {
  mode,
  ...
  // etc

Since Rails has at least one environment (typically) that webpack doesn't support (test)

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I opened this over a year ago and we don't even use Webpack anymore so 😆 no biggie from me!

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That introduced with 922b030 by @bholtbholt

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@jon-sully its possible it could/should be RAILS_ENV. In the app I did the conversion on we had NODE_ENV set so it was changing between builds.

It's been about over a year since I did the conversion and wrote the guide, so it's also possible Heroku, Rails, and Webpack changes have affected it. If it's out of date then it's definitely worth updating.

The important piece to keep in mind is that with mode: "development" webpack compiles and watches in a different way, using local caches, which makes the build faster.

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I wonder why i got tagged today 🤷‍♂️

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@Faq commented 8 hours ago but prior comment was a year ago 😅 Alas.

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Thank you for the answer.

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Feel free to update docs in a PR if anything is still out of date.

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