diff --git a/email.js b/email.js
new file mode 100644
index 0000000..c524d36
--- /dev/null
+++ b/email.js
@@ -0,0 +1,12 @@
+#!/usr/bin/env js
+var email = " hogehoge@example.com  \n";
+print(email)
+email = email.trim()
+print(email)
+var localpart = "", domainpart ="";
+var atpos = e.indexOf('@');
+if (atpos >= 0 && atpos == e.lastIndexOf('@')) {
+    localpart  = e.substring(0, atpos);
+    domainpart =  e.substr(atpos+1);
+}
+print(`local=${localpalt}, dom=${domainpart}`);
diff --git a/hello.js b/hello.js
new file mode 100755
index 0000000..c799ca1
--- /dev/null
+++ b/hello.js
@@ -0,0 +1,6 @@
+#!/usr/bin/env js
+s = "Hello, world!";
+for (var i=0; i<s.length; i++) {
+  print(s.substr(0, i+1));
+}
+