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30 lines
888 B
Markdown
30 lines
888 B
Markdown
# Defining Multiple Clauses In An Anonymous Function
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Anonymous functions often take the approach of doing a single thing with the
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inputs, regardless of their shape or values. There is no need to limit
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ourselves though. The same pattern matching that we use all over our Elixir
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programs can be utilized to define multiple clauses in an anonymous function
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as well.
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Consider the following example:
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```elixir
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iex> my_function = fn
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{:ok, x} -> "Everything is ok: #{x}"
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{:error, x} -> "There was an error: #{x}"
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end
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#Function<6.52032458/1 in :erl_eval.expr/5>
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```
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We can then invoke our anonymous function using the bound variable to see
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what results we get with different kinds of inputs.
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```elixir
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iex> my_function.({:ok, 123})
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"Everything is ok: 123"
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iex> my_function.({:error, "be warned"})
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"There was an error: be warned"
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```
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[source](http://stackoverflow.com/a/18023790/535590)
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