small improvements

build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
+
 plugins {
     kotlin("multiplatform") version "2.0.21"
     kotlin("plugin.serialization") version "2.0.21"
@@ -6,7 +8,7 @@ plugins {
 }
 
 group = "net.sergeych"
-version = "0.1.11"
+version = "0.1.12-SNAPSHOT"
 
 repositories {
     mavenCentral()
@@ -31,6 +33,7 @@ kotlin {
     linuxArm64()
     mingwX64()
 
+    @OptIn(ExperimentalWasmDsl::class)
     wasmJs {
         browser()
         binaries.executable()

src/commonMain/kotlin/net.sergeych.bintools/ByteChunk.kt

@@ -1,6 +1,7 @@
 package net.sergeych.bintools
 
 import kotlinx.serialization.Serializable
+import net.sergeych.mp_tools.encodeToBase64Compact
 import kotlin.math.min
 import kotlin.random.Random
 
@@ -64,6 +65,11 @@ class ByteChunk(val data: UByteArray): Comparable<ByteChunk> {
      */
     val dump by lazy { data.toDump() }
 
+    /**
+     * Lazy encode to base64 with url alphabet, without trailing fill '=' characters.
+     */
+    val base64 by lazy { data.asByteArray().encodeToBase64Compact() }
+
     /**
      * Concatenate two chunks and return new one
      */
@@ -75,6 +81,13 @@ class ByteChunk(val data: UByteArray): Comparable<ByteChunk> {
     }
 }
 
+/**
+ * Create the representation of this array as ByteChunk; it does not copy the data.
+ */
 fun ByteArray.asChunk() = ByteChunk(this.asUByteArray())
+
+/**
+ * Create the representation of this array as ByteChunk; it does not copy the data.
+ */
 @Suppress("unused")
 fun UByteArray.asChunk() = ByteChunk(this)