2019-12-22 14:06:03 +01:00
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package jp.juggler.util
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// same as x?.let{ dst.add(it) }
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fun <T> T.addTo(dst: ArrayList<T>) = dst.add(this)
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2020-01-07 09:03:32 +01:00
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2020-12-07 13:23:14 +01:00
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fun <E : List<*>> E?.notEmpty(): E? =
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if (this?.isNotEmpty() == true) this else null
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fun <E : Map<*, *>> E?.notEmpty(): E? =
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if (this?.isNotEmpty() == true) this else null
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