Added a test.

test-array-performance.coffee

+#
+# Just a quick test to make sure there are no performance overheads from reading in a large JSON array.
+# (There aren’t.)
+#
+randomWord = require 'random-word'
+fs = require 'fs'
+
+a = []
+s = Date.now()
+for i in [1..64000]
+	a.push randomWord()
+e = Date.now()
+
+fs.writeFileSync 'test.json', JSON.stringify(a)
+
+console.log('Generate + write took: ' + (e-s) + ' ms')
+
+s = Date.now()
+b = JSON.parse(fs.readFileSync 'test.json')
+e = Date.now()
+
+console.log('Read + parse took: ' + (e-s) + ' ms')
+