javascript - className is not appended to the js object - 


var obj = document.createelement('div'); obj.classname = 'classname';

this output div element class appended it.

var obj = { dive : function(){    return document.createelement('div')}       } obj.dive().classname = 'classname';

this doesnot append class name div element i.e. obj.dive()

what reason? how append class obj.dive();

the returned value of obj.dive().classname = 'classname'; statement classname string. code creates element, modifies it's classname property , doesn't anything. if store returned value:

var value = obj.dive().classname = 'classname';

then stored value 'classname' string not created element. have create element, store , update classname first snippet.

if want create helper function can code:

var obj = {   dive : function(cls) {      var div = document.createelement('div');      if ( cls ) {         div.classname = cls;      }      return div;   }       }  var createdelement = obj.dive('classname'); var anotherelement = obj.dive();

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