Use native Array.prototype.map

Author: kemitchell

scan.js

@@ -33,12 +33,11 @@ module.exports = function (source) {
   }
 
   function operator () {
-    var string = util.oneOf(util.map(
-      ['WITH', 'AND', 'OR', '(', ')', ':', '+'],
-      function (s) {
+    var string = util.oneOf(
+      ['WITH', 'AND', 'OR', '(', ')', ':', '+'].map(function (s) {
         return function () { return read(s) }
-      }
-    ))
+      })
+    )
 
     if (string === '+' && index > 1 && source[index - 2] === ' ') {
       throw new Error('Space before `+`')

util.js

@@ -1,12 +1,3 @@
-
-function map (array, func) {
-  var result = []
-  for (var i = 0; i < array.length; i++) {
-    result.push(func(array[i]))
-  }
-  return result
-}
-
 // Returns the return value of the first function which returns a
 // truthy value.
 function oneOf (functions) {
@@ -19,6 +10,5 @@ function oneOf (functions) {
 }
 
 module.exports = {
-  map: map,
   oneOf: oneOf
 }