Juliaでリスト内にある特定の要素があるかどうかを判定する[Julia]

l=["a","b","c","d","e"]
in("a", l)
>> true

inという関数を使うだけ．
ちなみにpythonでは，

l=["a","b","c","d","e"]
"a" in l
>> True

と書く．

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