``` pairs mapNotNull it takeIf it second = null let it as Pa kotlinlang #stdlib

``` pairs.mapNotNull { it.takeIf { it.second != nu...

dmitry.petrov

04/21/2017, 12:23 PM

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pairs.mapNotNull { it.takeIf { it.second != null }?.let { it as Pair<String, Double> } }.toMap()

Unsafe (relying on nullability check under

takeIf

), but doesn't create an extra list for filterIsInstance.

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