Polyfill for Object.values and replace Array.prototype.includes by Array.prototype.indexOf

Author: elchininet

lib/css-byebye.js

@@ -15,7 +15,7 @@ const cssbyebye = postcss.plugin('css-byebye', function (options) {
     const regex = concatRegexes(remregexes)
     let controlDirective = null
 
-    css.each(walkNodes)
+    css.walk(walkNodes)
 
     function walkNodes(node) {
 

lib/utilities/directives.js

@@ -1,3 +1,14 @@
+/**
+ * Object.getValues polyfill
+ * @param  {Object} obj object
+ * @return {Array}
+ */
+function getValues(obj) {
+  return Object.keys(obj).map(function (key) {
+    return obj[key];
+  });
+}
+
 const CONTROL_DIRECTIVE_REG_EXP = /^\/\*!? *byebye:?(begin|end)?:(\w+) *\*\/$/
 
 const CONTROL_DIRECTIVES = {
@@ -9,8 +20,8 @@ const CONTROL_DIRECTIVES_BLOCKS = {
   END: 'end'
 }
 
-const controlDirectivesValues = Object.values(CONTROL_DIRECTIVES)
-const controlDirectivesBlockValues = Object.values(CONTROL_DIRECTIVES_BLOCKS)
+const controlDirectivesValues = getValues(CONTROL_DIRECTIVES)
+const controlDirectivesBlockValues = getValues(CONTROL_DIRECTIVES_BLOCKS)
 
 /**
  * Check if a directive match is a valid one
@@ -20,10 +31,10 @@ const controlDirectivesBlockValues = Object.values(CONTROL_DIRECTIVES_BLOCKS)
 function isValidMatchDirective(match) {
   if (Array.isArray(match)) {
     return (
-      controlDirectivesValues.includes(match[2]) &&
+      controlDirectivesValues.indexOf(match[2]) >= 0 &&
       (
         typeof match[1] === 'undefined' ||
-        controlDirectivesBlockValues.includes(match[1]) 
+        controlDirectivesBlockValues.indexOf(match[1]) >= 0 
       )
     )
   }