angularjs之根据某个属性值将json分组

angular.forEach(rightOptions.options,function(v,k){
_label=v.group;
varsubInsertMenus={};
if(!rightMenus[_label]){//判断父节点是否存在
	subMenu(v);
	subInsertMenus[v.label]=srm;
	varrm={
			"label":_label,"separator_before":false,"separator_after":false,"submenu":subInsertMenus
	};
	rightMenus[_label]=rm;
}else{
	subMenu(v);
	rightMenus[_label].submenu[v.label]=srm;
}
});