improvements in resources

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## 0.20.26
 
+* `Resources`:
+    * Add opportunity to get default translation by passing `null` as `IetfLang` argument
+    * Add several useful extensions to get translations in `JS` target
+
 ## 0.20.25
 
 * `Colors`:

resources/src/commonMain/kotlin/StringResource.kt

@@ -39,7 +39,10 @@ class StringResource(
         fun build() = StringResource(default, map.toMap())
     }
 
-    fun translation(languageCode: IetfLang): String {
+    fun translation(languageCode: IetfLang?): String {
+        if (languageCode == null) {
+            return default
+        }
         map[languageCode] ?.let { return it.value }
 
         return languageCode.parentLang ?.let {

resources/src/jsMain/kotlin/StringResourceExtensions.kt

@@ -0,0 +1,11 @@
+package dev.inmo.micro_utils.strings
+
+import dev.inmo.micro_utils.language_codes.IetfLang
+import kotlinx.browser.window
+import org.w3c.dom.NavigatorLanguage
+
+fun StringResource.translation(language: NavigatorLanguage) = translation(
+    language.language.unsafeCast<String?>() ?.let { IetfLang(it) }
+)
+
+fun StringResource.translation() = translation(window.navigator)