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Document that Map.pick can throw KeynotFoundException#297

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Kevin Ransom (KevinRansom) merged 1 commit into from
Oct 30, 2017
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Document that Map.pick can throw KeynotFoundException #297

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8 changes: 7 additions & 1 deletion docs/conceptual/map.pick['key,'t,'u]-function-[fsharp].md
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Expand Up@@ -13,7 +13,9 @@ ms.assetid: aa03cc11-bddf-44e4-9264-e517733c3ded

# Map.pick<'Key,'T,'U> Function (F#)

Searches the map looking for the first element where the given function returns a `Some` value
Searches the map looking for the first element where the given function returns a `Some` value. If the function returns `None` for all elements, raises `System.Collections.Generic.KeyNotFoundException`.



**Namespace/Module Path**: Microsoft.FSharp.Collections.Map

Expand DownExpand Up@@ -44,6 +46,10 @@ Type: [Map](https://msdn.microsoft.com/library/975316ea-55e3-4987-9994-90897ad45

The input map.

## Exceptions
|Exception|Condition|
|----|----|
|[KeyNotFoundException](https://msdn.microsoft.com/library/system.collections.generic.keynotfoundexception.aspx)|Thrown if the function returns `None` for all elements.|

## Return Value

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