isWhitespace

expect fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.0

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.1

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.0

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.3

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.8

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20

actual fun Char.isWhitespace(): Boolean(source)

Determines whether a character is whitespace.

A character is considered whitespace if either its Unicode category is one of CharCategory.SPACE_SEPARATOR, CharCategory.LINE_SEPARATOR, CharCategory.PARAGRAPH_SEPARATOR, or it is a CharCategory.CONTROL character in range U+0009..U+000D or U+001C..U+001F.

Returns true if the character is whitespace.

Since Kotlin

1.8

Samples

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

fun main() { 
   //sampleStart 
   val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
   //sampleEnd
}
xxxxxxxxxx
 
val chars = listOf(' ', '\t', '\n', '1', 'a', '\u00A0')
val (whitespaces, notWhitespaces) = chars.partition { it.isWhitespace() }
// whitespace char codes
println(whitespaces.map(Char::code)) // [32, 9, 10, 160]
// non-whitespace chars
println(notWhitespaces) // [1, a] 
Open in Playground →
Target: JVMRunning on v.2.1.20