Port to ES6 (#4)

README.md

@@ -29,28 +29,28 @@ Unicode Tries are generally precompiled from data in the Unicode database
 for faster runtime performance.  To build a Unicode Trie, use the
 `UnicodeTrieBuilder` class.
 
-```coffeescript
-UnicodeTrieBuilder = require 'unicode-trie/builder'
+```js
+const UnicodeTrieBuilder = require('unicode-trie/builder');
 
-# create a trie
-t = new UnicodeTrieBuilder
+// create a trie
+let t = new UnicodeTrieBuilder();
 
-# optional parameters for default value, and error value
-# if not provided, both are set to 0
-t = new UnicodeTrieBuilder 10, 999
+// optional parameters for default value, and error value
+// if not provided, both are set to 0
+t = new UnicodeTrieBuilder(10, 999);
 
-# set individual values and ranges
-t.set 0x4567, 99
-t.setRange 0x40, 0xe7, 0x1234
+// set individual values and ranges
+t.set(0x4567, 99);
+t.setRange(0x40, 0xe7, 0x1234);
 
-# you can lookup a value if you like
-t.get 0x4567 # => 99
+// you can lookup a value if you like
+t.get(0x4567); // => 99
 
-# get a compiled trie (returns a UnicodeTrie object)
-trie = t.freeze()
+// get a compiled trie (returns a UnicodeTrie object)
+const trie = t.freeze();
 
-# write compressed trie to a binary file
-fs.writeFile 'data.trie', t.toBuffer()
+// write compressed trie to a binary file
+fs.writeFile('data.trie', t.toBuffer());
 ```
 
 ## Using a precompiled Trie
@@ -59,16 +59,16 @@ Once you've built a precompiled trie, you can load it into the
 `UnicodeTrie` class, which is a readonly representation of the
 trie.  From there, you can lookup values.
 
-```coffeescript
-UnicodeTrie = require 'unicode-trie'
-fs = require 'fs'
+```js
+const UnicodeTrie = require('unicode-trie');
+const fs = require('fs');
 
-# load serialized trie from binary file
-data = fs.readFileSync 'data.trie'
-trie = new UnicodeTrie data
+// load serialized trie from binary file
+const data = fs.readFileSync('data.trie');
+const trie = new UnicodeTrie(data);
 
-# lookup a value
-trie.get 0x4567 # => 99
+// lookup a value
+trie.get(0x4567); // => 99
 ```
 
 ## License