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37 lines
1.1 KiB
Markdown
37 lines
1.1 KiB
Markdown
# Find The Version Of An Installed Dependency
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I recently ran into a bug related to a specific version of a dependency. As
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part of tracking it down, I needed to figure out what version I had installed.
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The [`yarn list`](https://classic.yarnpkg.com/en/docs/cli/list) command can
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help with this. Without any flags, it will show a tree structure listing _every
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single_ dependency and sub-dependency that is installed for your project.
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Here is an example of what that looks like restricted to a pattern of `jest`.
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```bash
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$ yarn list --pattern jest
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yarn list v1.22.10
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├─ @testing-library/jest-dom@5.14.1
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├─ @types/jest@27.0.1
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├─ @types/testing-library__jest-dom@5.9.5
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│ ├─ @jest/types@26.6.2
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│ ├─ @types/jest@26.0.23
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│ ├─ jest-diff@26.6.2
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│ └─ jest-get-type@26.3.0
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...
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```
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I can look through this list and find the dependency and version of interest.
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It's still a lot of results to comb through, so what I like to do instead is
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pipe it to [`fzf`](https://github.com/junegunn/fzf).
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```bash
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$ yarn list | fzf
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```
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Then I can interactively narrow down the results with the power of FZF's fuzzy
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finding functionality.
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