stdlib
1.2
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.0
Common
JVM
JS
stdlib
/
kotlin.collections
/
Map
/
containsKey
contains
Key
Common
JVM
JS
abstract
fun
containsKey
(
key
:
K
)
:
Boolean
(
source
)
Returns
true
if the map contains the specified
key
.
Since Kotlin
1.2
abstract
fun
containsKey
(
key
:
K
)
:
Boolean
(
source
)
Returns
true
if the map contains the specified
key
.
Since Kotlin
1.0
abstract
fun
containsKey
(
key
:
K
)
:
Boolean
(
source
)
Returns
true
if the map contains the specified
key
.
Since Kotlin
1.1