Backbone.js - Correct way of filtering and displaying collection data in a view

Question

I have got a huge list of tasks loaded on the start.
I want to show them depending on selected list / inbox, so that there won\'t be additional loadings for each list.

Answer 1

@sled there's typos in the code you posted, see comments inline. Did you post this as a project somewhere?

// add models
add: function(models, options) {
  // TYPO: next line was missing, so single models not handled.
  models = _.isArray(models) ? models.slice() : [models];

  var self = this;

  models = _.filter(models, this.filter);

  // return if no models exist
  // TYPO: returned undefined, so was not chainable
  if(models.length == 0) { return this; }

  // actually add the models to the superset
  this.superset.add(models, options);
  return this;
},

// remove models
remove: function(models, options) {
  // TYPO: next line was missing, so single models not handled.
  models = _.isArray(models) ? models.slice() : [models];

  // remove model from superset
  this.superset.remove(_.filter(_.filter(models, function(cm) {
    // TYPO: not 'm != null', causes error to be thrown
    return cm != null;
  }), this.filter), options);
  // TYPO: missing return so not chainable
  return this;
},