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magdamiu/Collections.kt

Created March 14, 2020 14:41
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Collections.kt
//map
println(languagesList.map { it.town })
println(languagesList.mapIndexed { index, language -> index to language.town })
//distinct
println(languagesList.map { it.town }.distinct())
//associate(), associateBy()
println(languagesList.associate { it.name to it.town })
println(languagesList.associateBy({ it.name }, { it.company }))
//groupBy()
println(languagesList.groupBy { it.company })
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