Used by the dataset HTML attribute to represent data for custom attributes added to elements.
Method overview
| DOMString getDataAttr(in DOMString prop);Native code only! | 
| boolean hasDataAttr(in DOMString prop);Violates the XPCOM interface guidelines | 
| void removeDataAttr(in DOMString prop);Violates the XPCOM interface guidelines | 
| void removeProp(in nsIAtom attr);Violates the XPCOM interface guidelines | 
| void setDataAttr(in DOMString prop, in DOMString value);Native code only! | 
Methods
Native code only!
getDataAttr
DOMString getDataAttr( in DOMString prop );
Parameters
- prop
- The property for which to retrieve the value.
Return value
The value for the specified property name.
 
  Violates the XPCOM interface guidelines 
  
hasDataAttr()
boolean hasDataAttr( in DOMString prop );
Parameters
- prop
- The property for which to check for the existence of a value.
Return value
true if the property exists; otherwise false.
 
  Violates the XPCOM interface guidelines 
  
removeDataAttr()
void removeDataAttr( in DOMString prop );
Parameters
- prop
- The property to remove from the data set.
 
  Violates the XPCOM interface guidelines 
  
removeProp()
Removes the property from the dataset object. Used to update the dataset object when data-* attribute has been removed from the element.
void removeProp( in nsIAtom attr );
Parameters
- attr
- The property to remove from the dataset.
Native code only!
setDataAttr
Sets the value of the specified property.
void setDataAttr( in DOMString prop, in DOMString value );
Parameters
- prop
- The property whose value is to be set.
- value
- The property's new value.
Browser compatibility
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari | 
|---|---|---|---|---|---|
| Basic support | ? | 6.0 (6.0) | ? | ? | ? | 
| Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile | 
|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? |