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Using hasOwnProperty is better for user keys on objects we control

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This commit is contained in:
Tim Schaub
2013-02-19 14:17:58 -07:00
parent b9507de3ea
commit 6cfc36d8cc
1 changed files with 6 additions and 3 deletions
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9
src/ol/object.js
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@@ -91,7 +91,8 @@ ol.Object.getAccessors = function(obj) {
* @return {string} Changed name.
*/
ol.Object.getChangedEventType = function(key) {
return ol.Object.changedEventTypeCache_[key] ||
return ol.Object.changedEventTypeCache_.hasOwnProperty(key) ?
ol.Object.changedEventTypeCache_[key] :
(ol.Object.changedEventTypeCache_[key] = key.toLowerCase() + '_changed');
};
@@ -101,7 +102,8 @@ ol.Object.getChangedEventType = function(key) {
* @return {string} Getter name.
*/
ol.Object.getGetterName = function(key) {
return ol.Object.getterNameCache_[key] ||
return ol.Object.getterNameCache_.hasOwnProperty(key) ?
ol.Object.getterNameCache_[key] :
(ol.Object.getterNameCache_[key] = 'get' + ol.Object.capitalize(key));
};
@@ -121,7 +123,8 @@ ol.Object.getListeners = function(obj) {
* @return {string} Setter name.
*/
ol.Object.getSetterName = function(key) {
return ol.Object.setterNameCache_[key] ||
return ol.Object.setterNameCache_.hasOwnProperty(key) ?
ol.Object.setterNameCache_[key] :
(ol.Object.setterNameCache_[key] = 'set' + ol.Object.capitalize(key));
};