diff --git a/lib/meta.js b/lib/meta.js
index a08ee57..a069156 100644
--- a/lib/meta.js
+++ b/lib/meta.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TODO
+  return /\.$/g.test(str)
 }
\ No newline at end of file
diff --git a/lib/quantifier.js b/lib/quantifier.js
index a08ee57..eced88e 100644
--- a/lib/quantifier.js
+++ b/lib/quantifier.js
@@ -1,3 +1,4 @@
 module.exports = function (str) {
   // TODO
+  return /^\d+\.jpe?g$/g.test(str)
 }
\ No newline at end of file
diff --git a/lib/split.js b/lib/split.js
index a08ee57..86a85b4 100644
--- a/lib/split.js
+++ b/lib/split.js
@@ -1,3 +1,5 @@
 module.exports = function (str) {
   // TODO
+  // return str.replace(/\s/g, '').split(',')
+  return str.split(/\s*,\s*/g)
 }
\ No newline at end of file