# Risk-free Migration From Assetic to Webpack

DevFeed: [Risk-free Migration From Assetic to Webpack](<https://devfeed.tech/articles/risk-free-migration-from-assetic-to-webpack-27929.md>)

Original publisher: [Read original article](<https://tech.trivago.com/post/2015-05-28-introduce-webpack/>)

Author: Tom Bartel

Published: 2015-05-28T00:00:00Z

Content type: tutorial

Language: en

Sources: [Trivago](<https://devfeed.tech/sources/trivago.md>)

Topics: [Webpack](<https://devfeed.tech/topics/webpack.md>), [migration](<https://devfeed.tech/topics/migration.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [Code](<https://devfeed.tech/topics/code.md>), [Symfony](<https://devfeed.tech/topics/symfony.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [web applications](<https://devfeed.tech/topics/web-applications.md>)

Tags: [build](<https://devfeed.tech/tags/build.md>), [code](<https://devfeed.tech/tags/code.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [frontend](<https://devfeed.tech/tags/frontend.md>), [javascript](<https://devfeed.tech/tags/javascript.md>), [migration](<https://devfeed.tech/tags/migration.md>), [symfony](<https://devfeed.tech/tags/symfony.md>), [web](<https://devfeed.tech/tags/web.md>), [webpack](<https://devfeed.tech/tags/webpack.md>)

## AI overview

This article explains trivago's migration from Assetic to webpack for building JavaScript assets. It focuses on running both systems in parallel for testing and using a custom webpack loader to avoid duplicating code or configuration during the transition.

## Source excerpt

Learn how we introduced webpack to build our JavaScript assets. One of the main challenges was to run both Assetic and webpack in parallel for some time, in order to run tests and to make sure nothing was broken. This was achieved without any code or configuration duplication by developing a custom webpack loader.