lowercaseChar

expect fun Char.lowercaseChar(): Char(source)

Converts this character to lower case using Unicode mapping rules of the invariant locale.

This function performs one-to-one character mapping. To support one-to-many character mapping use the lowercase function. If this character has no mapping equivalent, the character itself is returned.

Since Kotlin

1.5

Samples

import java.util.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun Char.lowercaseChar(): Char(source)

Converts this character to lower case using Unicode mapping rules of the invariant locale.

Since Kotlin

1.5

Samples

import java.util.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual inline fun Char.lowercaseChar(): Char(source)

Converts this character to lower case using Unicode mapping rules of the invariant locale.

Since Kotlin

1.5

Samples

import java.util.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.lowercaseChar(): Char(source)

Converts this character to lower case using Unicode mapping rules of the invariant locale.

Since Kotlin

1.5

Samples

import java.util.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf('A', 'Ω', '1', 'a', '+', 'İ')
val lowercaseChar = chars.map { it.lowercaseChar() }
val lowercase = chars.map { it.lowercase() }
println(lowercaseChar) // [a, ω, 1, a, +, i]
println(lowercase) // [a, ω, 1, a, +, \u0069\u0307] 
Open in Playground →
Target: JVMRunning on v.2.1.20

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