Corrected return type of getPropertyValue for CSS style attributes (is now nullable)

Author: TheSpyder

CHANGELOG.md

@@ -11,6 +11,11 @@
 
 ## main
 
+
+#### :boom: Breaking Change
+
+- Corrected return type of `getPropertyValue` for CSS style attributes (it's nullable and now returns an option).
+
 # 0.9.1
 
 #### :bug: Bug Fix

src/Webapi/Dom/Webapi__Dom__CssStyleDeclaration.res

@@ -7,7 +7,8 @@ type cssRule /* TODO: Move to Webapi__Dom */
 @get external parentRule: t => cssRule = "parentRule"
 
 @send external getPropertyPriority: (t, string) => string = "getPropertyPriority"
-@send external getPropertyValue: (t, string) => string = "getPropertyValue"
+@send @return(nullable)
+external getPropertyValue: (t, string) => option<string> = "getPropertyValue"
 @send external item: (t, int) => string = "item"
 @send external removeProperty: (t, string) => string = "removeProperty"
 @send external setProperty: (t, string, string, string) => unit = "setProperty"
@@ -135,4 +136,4 @@ type cssRule /* TODO: Move to Webapi__Dom */
 @get external widows: t => string = "widows"
 @get external width: t => string = "width"
 @get external wordSpacing: t => string = "wordSpacing"
-@get external zIndex: t => string = "zIndex"
+@get external zIndex: t => string = "zIndex"