diff --git a/js/js.libraries/src/core/char.kt b/js/js.libraries/src/core/char.kt
index 91a581ff751..06ab5da6a19 100644
--- a/js/js.libraries/src/core/char.kt
+++ b/js/js.libraries/src/core/char.kt
@@ -19,9 +19,9 @@ package kotlin.text
 // actually \s is enough to match all whitespace, but \xA0 added because of different regexp behavior of Rhino used in Selenium tests
 public fun Char.isWhitespace(): Boolean = toString().matches("[\\s\\xA0]")
 
-public external fun Char.toLowerCase(): Char = noImpl
+public inline fun Char.toLowerCase(): Char = asDynamic().toLowerCase()
 
-public external fun Char.toUpperCase(): Char = noImpl
+public inline fun Char.toUpperCase(): Char = asDynamic().toUpperCase()
 
 /**
  * Returns `true` if this character is a Unicode high-surrogate code unit (also known as leading-surrogate code unit).
diff --git a/js/js.libraries/src/core/core.kt b/js/js.libraries/src/core/core.kt
index c93815a9c0f..2a8a202349e 100644
--- a/js/js.libraries/src/core/core.kt
+++ b/js/js.libraries/src/core/core.kt
@@ -7,7 +7,7 @@ public external fun eval(expr: String): dynamic = noImpl
 
 public external val undefined: Nothing? = noImpl
 
-external operator fun <K, V> MutableMap<K, V>.set(key: K, value: V): V? = noImpl
+inline operator fun <K, V> MutableMap<K, V>.set(key: K, value: V): V? = asDynamic().set(key, value)
 
 @library
 public fun println() {}
diff --git a/js/js.libraries/src/core/generated/_ArraysJs.kt b/js/js.libraries/src/core/generated/_ArraysJs.kt
index 2d0b4600720..df9676e26bf 100644
--- a/js/js.libraries/src/core/generated/_ArraysJs.kt
+++ b/js/js.libraries/src/core/generated/_ArraysJs.kt
@@ -844,57 +844,57 @@ public fun <T> Array<out T>.contentDeepHashCode(): Int {
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun <T> Array<out T>.sort(comparison: (T, T) -> Int): Unit {
-    noImpl
+public inline fun <T> Array<out T>.sort(noinline comparison: (T, T) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun ByteArray.sort(comparison: (Byte, Byte) -> Int): Unit {
-    noImpl
+public inline fun ByteArray.sort(noinline comparison: (Byte, Byte) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun ShortArray.sort(comparison: (Short, Short) -> Int): Unit {
-    noImpl
+public inline fun ShortArray.sort(noinline comparison: (Short, Short) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun IntArray.sort(comparison: (Int, Int) -> Int): Unit {
-    noImpl
+public inline fun IntArray.sort(noinline comparison: (Int, Int) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun LongArray.sort(comparison: (Long, Long) -> Int): Unit {
-    noImpl
+public inline fun LongArray.sort(noinline comparison: (Long, Long) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun FloatArray.sort(comparison: (Float, Float) -> Int): Unit {
-    noImpl
+public inline fun FloatArray.sort(noinline comparison: (Float, Float) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun DoubleArray.sort(comparison: (Double, Double) -> Int): Unit {
-    noImpl
+public inline fun DoubleArray.sort(noinline comparison: (Double, Double) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */
-public external fun CharArray.sort(comparison: (Char, Char) -> Int): Unit {
-    noImpl
+public inline fun CharArray.sort(noinline comparison: (Char, Char) -> Int): Unit {
+    asDynamic().sort(comparison)
 }
 
 /**
diff --git a/js/js.libraries/src/core/string.kt b/js/js.libraries/src/core/string.kt
index 631683e7edc..73d11fc6245 100644
--- a/js/js.libraries/src/core/string.kt
+++ b/js/js.libraries/src/core/string.kt
@@ -2,21 +2,17 @@ package kotlin.text
 
 import kotlin.text.js.RegExp
 
-public external fun String.toUpperCase(): String = noImpl
+public inline fun String.toUpperCase(): String = asDynamic().toUpperCase()
 
-public external fun String.toLowerCase(): String = noImpl
+public inline fun String.toLowerCase(): String = asDynamic().toLowerCase()
 
-@JsName("indexOf")
-internal external fun String.nativeIndexOf(str: String, fromIndex: Int): Int = noImpl
+internal inline fun String.nativeIndexOf(str: String, fromIndex: Int): Int = asDynamic().indexOf(str, fromIndex)
 
-@JsName("lastIndexOf")
-internal external fun String.nativeLastIndexOf(str: String, fromIndex: Int): Int = noImpl
+internal inline fun String.nativeLastIndexOf(str: String, fromIndex: Int): Int = asDynamic().lastIndexOf(str, fromIndex)
 
-@JsName("startsWith")
-internal external fun String.nativeStartsWith(s: String, position: Int): Boolean = noImpl
+internal inline fun String.nativeStartsWith(s: String, position: Int): Boolean = asDynamic().startsWith(s, position)
 
-@JsName("endsWith")
-internal external fun String.nativeEndsWith(s: String): Boolean = noImpl
+internal inline fun String.nativeEndsWith(s: String): Boolean = asDynamic().endsWith(s)
 
 @Deprecated("Use split(Regex) instead.", ReplaceWith("split(regex.toRegex()).toTypedArray()"))
 @library("splitString")
@@ -26,18 +22,17 @@ public fun String.splitWithRegex(regex: String): Array<String> = noImpl
 @library("splitString")
 public fun String.splitWithRegex(regex: String, limit: Int): Array<String> = noImpl
 
-public external fun String.substring(startIndex: Int): String = noImpl
+public inline fun String.substring(startIndex: Int): String = asDynamic().substring(startIndex)
 
-public external fun String.substring(startIndex: Int, endIndex: Int): String = noImpl
+public inline fun String.substring(startIndex: Int, endIndex: Int): String = asDynamic().substring(startIndex, endIndex)
 
-public external fun String.concat(str: String): String = noImpl
+public inline fun String.concat(str: String): String = asDynamic().concat(str)
 
-public external fun String.match(regex: String): Array<String> = noImpl
+public inline fun String.match(regex: String): Array<String> = asDynamic().match(regex)
 
 //native public fun String.trim() : String = noImpl
 //TODO: String.replace to implement effective trimLeading and trimTrailing
 
 public inline val CharSequence.size: Int get() = asDynamic().length
 
-@JsName("replace")
-internal external fun String.nativeReplace(pattern: RegExp, replacement: String): String = noImpl
+internal inline fun String.nativeReplace(pattern: RegExp, replacement: String): String = asDynamic().replace(pattern, replacement)
diff --git a/js/js.libraries/src/jquery/ui.kt b/js/js.libraries/src/jquery/ui.kt
index aa8f8c0c4c5..341caf0b358 100644
--- a/js/js.libraries/src/jquery/ui.kt
+++ b/js/js.libraries/src/jquery/ui.kt
@@ -4,22 +4,22 @@ package jquery.ui
 //jquery UI
 import jquery.JQuery
 
-public external fun JQuery.buttonset()  : JQuery = noImpl;
+public inline fun JQuery.buttonset(): JQuery = asDynamic().buttonset()
 
-public external fun JQuery.dialog() : JQuery = noImpl;
+public inline fun JQuery.dialog(): JQuery = asDynamic().dialog()
 
-public external fun JQuery.dialog(params : Json) : JQuery = noImpl
+public inline fun JQuery.dialog(params: Json): JQuery = asDynamic().dialog(params)
 
-public external fun JQuery.dialog(mode : String, param : String) : Any? = noImpl
+public inline fun JQuery.dialog(mode: String, param: String): Any? = asDynamic().dialog(mode, param)
 
-public external fun JQuery.dialog(mode : String) : JQuery = noImpl
+public inline fun JQuery.dialog(mode: String): JQuery = asDynamic().dialog(mode)
 
-public external fun JQuery.dialog(mode : String, param : String, value : Any?) : JQuery = noImpl
+public inline fun JQuery.dialog(mode: String, param: String, value: Any?): JQuery = asDynamic().dialog(mode, param, value)
 
-public external fun JQuery.button() : JQuery = noImpl;
+public inline fun JQuery.button(): JQuery = asDynamic().button()
 
-public external fun JQuery.accordion() : JQuery = noImpl
+public inline fun JQuery.accordion(): JQuery = asDynamic().accordion()
 
-public external fun JQuery.draggable(params : Json) : JQuery = noImpl
+public inline fun JQuery.draggable(params: Json): JQuery = asDynamic().draggable(params)
 
-public external fun JQuery.selectable() : JQuery = noImpl
+public inline fun JQuery.selectable(): JQuery = asDynamic().selectable()
diff --git a/js/js.libraries/src/stdlib/domCode.kt b/js/js.libraries/src/stdlib/domCode.kt
index 579a4c9ad0d..78f566910ce 100644
--- a/js/js.libraries/src/stdlib/domCode.kt
+++ b/js/js.libraries/src/stdlib/domCode.kt
@@ -7,7 +7,7 @@ import org.w3c.dom.Node
 public fun createDocument(): Document = Document()
 
 @Deprecated("use member property outerHTML of Element class instead")
-public external val Node.outerHTML: String get() = noImpl
+public inline val Node.outerHTML: String get() = asDynamic().outerHTML
 
 /** Converts the node to an XML String */
 @Deprecated("use outerHTML directly")
diff --git a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
index ff6e6e56dcc..e7b4bb90375 100644
--- a/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
+++ b/libraries/tools/kotlin-stdlib-gen/src/templates/SpecialJS.kt
@@ -252,13 +252,13 @@ fun specialJS(): List<GenericFunction> {
     }
 
 
-    templates add f("sort(comparison: (T, T) -> Int)") {
+    templates add f("sort(noinline comparison: (T, T) -> Int)") {
         only(ArraysOfObjects, ArraysOfPrimitives)
         exclude(PrimitiveType.Boolean)
-        external(true)
+        inline(true)
         returns("Unit")
         doc { "Sorts the array in-place according to the order specified by the given [comparison] function." }
-        body { "noImpl" }
+        body { "asDynamic().sort(comparison)" }
     }
 
     templates add f("sortWith(comparator: Comparator<in T>)") {