A guide to incorporating Lodash into TypeScript and Webpack without overriding the current _ variable

Currently, I am in the process of developing a module for an application that is utilizing Lodash 3. However, I would like to upgrade to Lodash 4 in this new module. This particular module is being coded in TypeScript and bundled with Webpack.

Initially, I had imported Lodash using import * as _ from 'lodash' in the new module assuming it wouldn't overwrite window._, but unfortunately it did. After encountering this problem, I found a related issue on GitHub at https://github.com/lodash/lodash/issues/1798. It appears to be similar to what I am experiencing, and it seems to have been addressed in version 4.14.0, while I am currently using Lodash 4.15.0.

I now wonder if there are specific steps I need to follow while importing Lodash into my code to prevent it from overwriting window._?

javascripttypescriptwebpacklodash

Answer №1

Read more about the unexpected behavior of Lodash in this thread: Lodash unexpectedly injects itself into global when required in subdependency.

To prevent Lodash from exporting itself to the window, I added the following code snippet to my configuration:

module: {
    noParse: /node_modules\/lodash\/lodash\.js/,
}

If you're still experiencing issues, you may want to explore the use of https://lodash.com/docs/4.17.4#noConflict although its effectiveness in solving your problem is uncertain.

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