Command T style

gistfile1.js

  filtered: function(q) {
    q = q || this.query || '';
    if (q === '') return this;
    var chars = q.toLowerCase().replace(/[^0-9a-z]/,'').split('');
    var searchFields = [
      'order_number',
      'vendor_name',
      'product_name',
      'redemption_shipping_label_tracking_number'
    ];
    return _(this.filter(function (item) {
      var include = false;
      _(searchFields).each(function(f) {
        var val = item.get(f) + '';
        val = val.toLowerCase().replace(/[^0-9a-z]/,'');
        if (!val) return;
        var index = 0;
        _(chars).each(function (c) {
            if (index < 0) return;
          index = val.indexOf(c, index);
        });
        if (index > -1) include = true;
      });
      return include;
    }));
  }