kotlinx-io-bytestring/kotlinx.io.bytestring/startsWith

startsWith

fun ByteString.startsWith(byteArray: ByteArray): Boolean(source)

Returns true if this byte string starts with the prefix specified by the byteArray.

Behavior of this method is compatible with CharSequence.startsWith.

Parameters

byteArray

the prefix to check for.

Samples

import kotlinx.io.bytestring.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val string = ByteString(1, 2, 3, 4, 5)

assertTrue(string.startsWith(byteArrayOf(1, 2, 3, 4, 5)))
assertTrue(string.startsWith(byteArrayOf(/* empty byte array */)))
assertTrue(string.startsWith(byteArrayOf(1, 2, 3)))
assertFalse(string.startsWith(byteArrayOf(1, 3, 4)))
assertFalse(string.startsWith(byteArrayOf(1, 2, 3, 4, 5, 6))) 
   //sampleEnd
}

fun ByteString.startsWith(byteString: ByteString): Boolean(source)

Returns true if this byte string starts with the prefix specified by the byteString.

Behavior of this method is compatible with CharSequence.startsWith.

Parameters

byteString

the prefix to check for.

Samples

import kotlinx.io.bytestring.*
import kotlin.test.*

fun main() { 
   //sampleStart 
   val string = ByteString(1, 2, 3, 4, 5)

assertTrue(string.startsWith(string))
assertTrue(string.startsWith(ByteString(/* empty byte string */)))
assertTrue(string.startsWith(ByteString(1, 2, 3)))
assertFalse(string.startsWith(ByteString(1, 3, 4)))
assertFalse(string.startsWith(ByteString(1, 2, 3, 4, 5, 6))) 
   //sampleEnd
}