Iterating a Ext JS 4 store. How to go through every record of Ext JS store

Iterate an Ext JS 4 store

/* 
In the functoin below you have to find your store 
in your own object. If the function below is in a grid class
you can use it as it is put here
I like to keep things clear, therefor I address every object
in a seperate field for clarity. 
*/

function IterateThisStore() {

  var me = this;

  // get the store you want to iterate
  var store = me.getStore(); 

  // selection model
  var sm = store.getSelectionModel();

  // all records with getRange()
  var records = me.getStore().getRange();

  // iteration of the store
  Ext.each(records, function(item, idx) {
    // item.get to access a field in the record
    if (item.get('has_link') === true) {
       sm.select(item.index, true);
    }
  });
}