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May 11, 2020
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Clarified how to create a map #1396

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Clarified how to create a map
May 11, 2020
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Update pattern-matching.markdown
josevalim May 11, 2020
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15 changes: 1 addition & 14 deletions getting-started/pattern-matching.markdown
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Expand Up @@ -171,20 +171,7 @@ iex> {y, 1} = {2, 2}
** (MatchError) no match of right hand side value: {2, 2}
```

When using the pin operator in maps you must use the `=>` syntax when pinning a map's key, even when the value being pinned is an atom:

```iex
iex> k = :foo
:foo
iex> %{^k: v} = %{foo: "bar"}
** (SyntaxError) iex:11: syntax error before: k
iex> %{^k => v} = %{foo: "bar"}
%{foo: "bar"}
iex> v
"bar"
```

If a variable is mentioned more than once in a pattern, all references should bind to the same pattern:
If a variable is mentioned more than once in a pattern, all references should bind to the same value:

```iex
iex> {x, x} = {1, 1}
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