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OleMchls/example.esx

Created March 23, 2016 11:19
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elixir_string_match
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example.esx
# assign the prefix to a variable
iex(1)> pre = "he"
"he"
# a string match against the prefix works as expected
iex(2)> << "he", rest::binary >> = "hello"
"hello"
# a string match using the pinned prefix variable doesn't
iex(3)> << ^pre, rest::binary >> = "hello"
** (MatchError) no match of right hand side value: "hello"
# why?
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