Add a function to test if a variable is undefined.

2013-06-20 11:11:01 +02:00 · 2013-06-20 11:11:01 +02:00 · 51c9c416d4
parent d4af721516
commit 51c9c416d4
1 changed files with 5 additions and 0 deletions
--- a/util.js
+++ b/util.js
@ -23,6 +23,11 @@ function strformat () {
    return s;
 }

+function isDefined(x) {
+    var undefined;
+    return x !== undefined;
+}
+
 function getCurrentOption (option) {
    return $.cookie (option);
 }