preventing errors from indexOf() on undefined

oguzhalit · Nov 7, 2014 · ddd457b · ddd457b
1 parent 891ff36
commit ddd457b
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/utils.js b/lib/utils.js
@@ -25,15 +25,15 @@ exports.queryResultToJson = function(data, status) {
 };
 
 exports.startsWith = function(str, prefix) {
- return str.indexOf(prefix) === 0;
+ return str ? str.indexOf(prefix) === 0 : false;
 };
 
 exports.endsWith = function(str, suffix) {
- return str.indexOf(suffix, str.length - suffix.length) !== -1;
+ return str ? str.indexOf(suffix, str.length - suffix.length) !== -1 : false;
 };
 
 exports.contains = function(str, element) {
- return str.indexOf(element) !== -1;
+ return str ? str.indexOf(element) !== -1 : false;
 };
 
 exports.unquote = function(str) {