[Wasm] jsFun itoa32 for wasmJs

libraries/stdlib/wasm/internal/kotlin/wasm/internal/Number2String.kt

diff --git a/libraries/stdlib/wasm/internal/kotlin/wasm/internal/Number2String.kt b/libraries/stdlib/wasm/internal/kotlin/wasm/internal/Number2String.kt
index 86c061c..e4fd653 100644
--- a/libraries/stdlib/wasm/internal/kotlin/wasm/internal/Number2String.kt
+++ b/libraries/stdlib/wasm/internal/kotlin/wasm/internal/Number2String.kt
@@ -44,15 +44,18 @@
     return (CharCodes._0.code + input).toChar()
 }
 
-internal fun itoa32(inputValue: Int): String {
-    if (inputValue == 0) return "0"
+internal expect fun itoa32(inputValue: Int): String
+//= js("inputValue.toString()")
 
-    val isNegative = inputValue < 0
-    val absValue = if (isNegative) -inputValue else inputValue
-    val absValueString = utoa32(absValue.toUInt())
-
-    return if (isNegative) "-$absValueString" else absValueString
-}
+//{
+//    if (inputValue == 0) return "0"
+//
+//    val isNegative = inputValue < 0
+//    val absValue = if (isNegative) -inputValue else inputValue
+//    val absValueString = utoa32(absValue.toUInt())
+//
+//    return if (isNegative) "-$absValueString" else absValueString
+//}
 
 internal fun utoa32(inputValue: UInt): String {
     if (inputValue == 0U) return "0"

libraries/stdlib/wasm/js/internal/Number2String.kt

diff --git a/libraries/stdlib/wasm/js/internal/Number2String.kt b/libraries/stdlib/wasm/js/internal/Number2String.kt
new file mode 100644
index 0000000..4307d81
--- /dev/null
+++ b/libraries/stdlib/wasm/js/internal/Number2String.kt
@@ -0,0 +1,9 @@
+/*
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin.wasm.internal
+
+@OptIn(ExperimentalWasmJsInterop::class)
+internal actual fun itoa32(inputValue: Int): String = js("inputValue.toString()")
\ No newline at end of file

libraries/stdlib/wasm/wasi/internal/Number2String.kt

diff --git a/libraries/stdlib/wasm/wasi/internal/Number2String.kt b/libraries/stdlib/wasm/wasi/internal/Number2String.kt
new file mode 100644
index 0000000..883fee1
--- /dev/null
+++ b/libraries/stdlib/wasm/wasi/internal/Number2String.kt
@@ -0,0 +1,16 @@
+/*
+ * Copyright 2010-2025 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+package kotlin.wasm.internal
+
+internal actual fun itoa32(inputValue: Int): String {
+    if (inputValue == 0) return "0"
+
+    val isNegative = inputValue < 0
+    val absValue = if (isNegative) -inputValue else inputValue
+    val absValueString = utoa32(absValue.toUInt())
+
+    return if (isNegative) "-$absValueString" else absValueString
+}
\ No newline at end of file