toNotEmptyMap
@Since(version = KotoolsTypesVersion.V4_0_0)
Returns an encapsulated NotEmptyMap containing all the entries of this map, or returns an encapsulated IllegalArgumentException if this map is empty.
Here's a simple usage example:
var map: Map<Char, Int> = mapOf('a' to 1, 'b' to 2)
var result: Result<NotEmptyMap<Char, Int>> = map.toNotEmptyMap()
println(result) // Success({a=1, b=2})
map = emptyMap()
result = map.toNotEmptyMap()
println(result) // Failure(IllegalArgumentException)
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Please note that changes made to the original map will not be reflected on the resulting NotEmptyMap.
val original: MutableMap<Char, Int> = mutableMapOf('a' to 1, 'b' to 2)
val notEmptyMap: NotEmptyMap<Char, Int> = original.toNotEmptyMap()
.getOrThrow()
println(original) // {a=1, b=2}
println(notEmptyMap) // {a=1, b=2}
original.clear()
println(original) // {}
println(notEmptyMap) // {a=1, b=2}
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