add dual & restrictedPlural

Author: forzagreen

lib/index.js

@@ -137,7 +137,10 @@ function writtenNumber(n, options) {
       str = r > 1 && unit.plural && (!unit.avoidInNumberPlural || !m)
         ? unit.plural
         : unit.singular;
+      // Languages with dual
       str = (r === 2 && unit.dual) ? unit.dual : str;
+      // Use plural only for <= 10
+      str = (r > 10 && unit.restrictedPlural) ? unit.singular : str;
     }
 
     if (
@@ -179,8 +182,14 @@ function writtenNumber(n, options) {
       ret.slice(1)
     );
   }
-
-  return ret.reverse().join(" ");
+  // Languages that have separators for all. Not only base and unit
+  if (language.allSeparator) {
+    for (let j = 0; j < ret.length-1; j++) {
+      ret[j] = language.allSeparator + ret[j];      
+    }
+  }
+  var result = ret.reverse().join(" ");
+  return result;
 }
 
 function handleSmallerThan100(n, language, unit, baseCardinals, options) {