Add simple benchmark

Author: marcbachmann

benchmark.js

@@ -0,0 +1,56 @@
+var jsonpointer = require('./')
+
+var i
+var obj = {
+  a: 1,
+  b: {
+    c: 2
+  },
+  d: {
+    e: [{ a: 3 }, { b: 4 }, { c: 5 }]
+  }
+}
+
+// Get
+console.time('get first level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.get(obj, '/a')
+}
+console.timeEnd('get first level property')
+
+console.time('get second level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.get(obj, '/d/e')
+}
+console.timeEnd('get second level property')
+
+console.time('get third level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.get(obj, '/d/e/0')
+}
+console.timeEnd('get third level property')
+
+// Set
+console.time('set first level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.set(obj, '/a', 'bla')
+}
+console.timeEnd('set first level property')
+
+console.time('set second level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.set(obj, '/d/e', 'bla')
+}
+console.timeEnd('set second level property')
+
+console.time('set third level property')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.set(obj, '/d/e/0', 'bla')
+}
+console.timeEnd('set third level property')
+
+console.time('push property into array')
+for (i = 0; i < 1e6; i++) {
+  jsonpointer.set(obj, '/d/e/-', 'bla')
+}
+console.timeEnd('push property into array')