controller_3.js

/* A éviter */
function Sessions() {
  var vm = this;
  vm.gotoSession = function() {
    /* ... */
  };
  vm.refresh = function() {
    /* ... */
  };
  vm.search = function() {
    /* ... */
  };
  vm.sessions = [];
  vm.title = 'Sessions';
}

/* Recommandé */
function Sessions() {
  var vm = this;

  vm.gotoSession = gotoSession;
  vm.refresh = refresh;
  vm.search = search;
  vm.sessions = [];
  vm.title = 'Sessions';

  ////////////

  function gotoSession() {
    /* */
  }

  function refresh() {
    /* */
  }

  function search() {
    /* */
  }
}