Unable to remove the elements still the array get cleared - backbone.js

Question

I am fetching the data from the server each 10 sec, in this, i am getting 3 type of the data,
After the timeout call, i am removing the existing data, i can witness the console show that the array clears, but the elements still keep append upon.
how can i clear both elements in the DOM and unbind as well..
my close function is keep called, but the elements not remove from DOM.
my single view :
singleton.view = Backbone.View.extend({
tagName :'article',
template0 : function(value){
var label = value === 0 ? "projectName" : value === 1 ? "assignedTo" :"projectName";
return _.template("<a href='#'><%= "+label+" %></a>");
},
template1 : _.template($('#boardTemplate').html()),
initialize :function(prams){
this.template = this['template'+0](prams.subTempNo);
},
close:function(){
console.log('clean up') // i am getting consoled
this.unbind();// i am unbinding
this.remove();// i am removing
},
render:function(){
var temp = this.template;
this.$el.html(temp(this.model.toJSON()));
return this;
}
});
return singleton.view;
in the views :
listViewAppender:function(item,i){
var listElement = new singleton.view({model:item,tempNo:0,subTempNo:i,tagName:'li'});
listElement.close(); // whenever i call the new instance i am removing old stuff..
this.$el.find('.'+this.classItems[i]).append(listElement.render().el);
},
How can i fix this issue.. any correct approach pelase..

Answer 1

Ok just a quick rework.....you're going to have to test it out. Comment with what happens and I'll correct the code below.
Can you try
listViewSet:function(key,i){
var l = this.listCatch.length;
if(l > 0){
for (var i = 0; i < l; i++) {
console.log(this.listCatch[i]);
this.listCatch[i].remove();
}
}
this.listCatch = [];
_.each(this.listCollection.models, function(model){
that.listViewAppender(model,i); //setting agian.
});
},
listViewAppender:function(item,i){
var listElement = new singleton.view({model:item,tempNo:0,subTempNo:i,tagName:'li'});
console.log(listElement);
this.$el.find('.'+this.classItems[i]).append(listElement.render().el);
this.listCatch[i] = listElement;
},

Answer 2

I gone through across my functions, i find the issue in the line of this.listCatch[i] = listElement; wrongly declared.
Later i declared the array by manually, it's works fine. in my initialize i introduced 3 arrays, what i required now it works fine.
this.listCatch = [];
for(var i=0;i<this.listItems.length; i+=1){
this.listCatch[i] = [];
}
So before pushing the model to array, now the array introduced solved the issue.