Kotlin Convert List to Map

Oct 21, 2018

Convert object list to map by specifying the key.

val itemsMap = items.associateBy {    it.id}

Convert object list to map by specifiying key and value.

val itemsMap = items.associateBy({it.id}, {it.name})

Convert object list to MutableMap.

val itemsMap = items.associateByTo(mutableMapOf()) {    it.id}

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