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<p>That's what I was looking for! I didn't know about join! Thank
you!<br>
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<div class="moz-cite-prefix">Am 19.05.16 um 15:37 schrieb Marcin
Mrotek:<br>
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<div>Hello,<br>
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What about "join $ update <$> a <*> b" ?<br>
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Best regards,<br>
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Marcin Mrotek<br>
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