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Ported missing Additions and Updates section in Maps #123

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Nov 5, 2012
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Ported missing Additions and Updates section in Maps #123

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5 changes: 5 additions & 0 deletions overviews/collections/maps.md
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Expand Up @@ -29,6 +29,11 @@ The fundamental operations on maps are similar to those on sets. They are summar
| `ms contains k` |Tests whether `ms` contains a mapping for key `k`.|
| `ms isDefinedAt k` |Same as `contains`. |
| **Additions and Updates:**| |
| `ms + (k -> v)` |The map containing all mappings of `ms` as well as the mapping `k -> v` from key `k` to value `v`.|
| `ms + (k -> v, l -> w)` |The map containing all mappings of `ms` as well as the given key/value pairs.|
| `ms ++ kvs` |The map containing all mappings of `ms` as well as all key/value pairs of `kvs`.|
| `ms updated (k, v)` |Same as `ms + (k -> v)`.|
| **Removals:** | |
| `ms - k` |The map containing all mappings of `ms` except for any mapping of key `k`.|
| `ms - (k, 1, m)` |The map containing all mappings of `ms` except for any mapping with the given keys.|
| `ms -- ks` |The map containing all mappings of `ms` except for any mapping with a key in `ks`.|
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