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29 lines
843 B
Markdown
29 lines
843 B
Markdown
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---
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synopsis: "Add `pipe-operators` experimental feature"
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prs:
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- 11131
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---
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This is a draft implementation of [RFC 0148](https://github.com/NixOS/rfcs/pull/148).
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The `pipe-operators` experimental feature adds [`<|` and `|>` operators][pipe operators] to the Nix language.
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*a* `|>` *b* is equivalent to the function application *b* *a*, and
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*a* `<|` *b* is equivalent to the function application *a* *b*.
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For example:
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```
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nix-repl> 1 |> builtins.add 2 |> builtins.mul 3
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9
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nix-repl> builtins.add 1 <| builtins.mul 2 <| 3
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7
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```
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`<|` and `|>` are right and left associative, respectively, and have lower precedence than any other operator.
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These properties may change in future releases.
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See [the RFC](https://github.com/NixOS/rfcs/pull/148) for more examples and rationale.
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[pipe operators]: @docroot@/language/operators.md#pipe-operators
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