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fsharp/style/formatting: space (many curried args) #28141

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Feb 9, 2022
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fsharp/style/formatting: space (many curried args) #28141

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fsharp/style/formatting: space (many curried args)
knocte Feb 9, 2022
4ae8691
fsharp/style/formatting: fix ending of code snippet
knocte Feb 9, 2022
b5ecb4a
fsharp/style/formatting: fix grammar
knocte Feb 9, 2022
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21 changes: 19 additions & 2 deletions docs/fsharp/style-guide/formatting.md
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Original file line number Diff line number Diff line change
Expand Up @@ -195,10 +195,27 @@ Parentheses should be omitted unless arguments require them:
someFunction1 x.IngredientName

// ❌ Not preferred - parentheses should be omitted unless required
someFunction1(x.IngredientName)
someFunction1 (x.IngredientName)

// ✔️ OK - parentheses are required
someFunction1 (convertVolumeToLiter x)
```

Spaces should not be omitted when invoking with multiple curried arguments:

```fsharp
// ✔️ OK
someFunction1 (convertVolumeToLiter x) (convertVolumeUSPint x)
someFunction2 (convertVolumeToLiter y) y
someFunction3 z (convertVolumeUSPint z)

// ❌ Not preferred - spaces should not be omitted between arguments
someFunction1(convertVolumeToLiter x)(convertVolumeUSPint x)
someFunction2(convertVolumeToLiter y) y
someFunction3 z(convertVolumeUSPint z)
```

In default formatting conventions, a space is added when applying lower-case functions to tupled or parenthesized arguments:
In default formatting conventions, a space is added when applying lower-case functions to tupled or parenthesized arguments (even when a single argument is used):

```fsharp
// ✔️ OK
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