Misc refactoring of parseColor()

lib/canvas.js

@@ -124,7 +124,7 @@ var parseColor = exports.parseColor = function(str){
       , 1
     ];
   // #RRGGBB
-  } else if ('#' == str.charAt(0) && str.length > 4) {
+  } else if ('#' == str[0] && str.length > 4) {
     var captures = /#([a-fA-F\d]{2})([a-fA-F\d]{2})([a-fA-F\d]{2})/.exec(str);
     if (!captures) return;
     return cache[str] = [
@@ -134,7 +134,7 @@ var parseColor = exports.parseColor = function(str){
       , 1
     ];
   // #RGB
-  } else if ('#' == str.charAt(0)) {
+  } else if ('#' == str[0]) {
     var captures = /#([a-fA-F\d])([a-fA-F\d])([a-fA-F\d])/.exec(str);
     if (!captures) return;
     return cache[str] = [