Kotlin
Kotlin
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kotlin.collections.minus

minus

kotlin-stdlib / kotlin-collections - minus 
operator fun <K, V> Map<out K, V>.minus(key: K): Map<K, V>

Platform and version requirements: Kotlin 1.1

Returns a map containing all entries of the original map except the entry with the given key.

The returned map preserves the entry iteration order of the original map.

operator fun <K, V> Map&