LightningPaginationHelper.js

({
    getAccounts : function(component, helper) {
        var action = component.get("c.getAccountsWithOffset");
        action.setStorable();
        action.setParams({
            'pageSize' : component.get("v.pageSize").toString(),
            'pageNumber' : component.get("v.pageNumber").toString()
        });
        action.setCallback(this,function(response) {
            var state = response.getState();
            if (state === "SUCCESS") {
                console.log('Response Time: '+((new Date().getTime())-requestInitiatedTime));
                if(response.getReturnValue().length < component.get("v.pageSize")){
                    component.set("v.isLastPage", true);
                } else{
                    component.set("v.isLastPage", false);
                }
                component.set("v.resultSize", response.getReturnValue().length);
                component.set("v.data", response.getReturnValue());
            }
        });
        var requestInitiatedTime = new Date().getTime();
        $A.enqueueAction(action);
    },
   
 })