How bem-core + ES6 may looks like

0-bem-core-es6.md

How bem-core with ES6 modules may looks like

See http://jsmodules.io/

button.js

// @file common.blocks/button/button.js

import provide from 'ym';
import BemDom from 'i-bem__dom';

provide(BemDom.decl('button', {
  onSetMod : { 
    'js' : {
      'inited' : function() {
        // ···
      }
    }
  },
  
  _onPointerClick() {
    this.emit('click');
  }
}, {
  live() {
    this.liveBindTo('pointerclick', this.prototype._onPointerClick);
  }
}));

functions.js

// @file common.blocks/functions/functions.js

import provide from 'ym';

var toStr = Object.prototype.toString;

provide({
  isFunction : function(obj) {
      return toStr.call(obj) === '[object Function]';
  },

  noop : function() {}
});

jquery.js

// @file common.blocks/jquery/jquery.js

import provide from 'ym';
import loader from 'loader_type_js';
import cfg from 'jquery__config';

function doProvide(preserveGlobal) {
  provide(preserveGlobal? jQuery : jQuery.noConflict(true));
}

typeof jQuery !== 'undefined'?
  doProvide(true) :
  loader(cfg.url, doProvide);

select_mode_check.js

// @file common.blocks/select/_mode/select_mode_check.js

import provide from 'ym';
import escape from 'strings__escape';
import Select from 'select';

provide(Select.declMod({ modName : 'type', modVal : 'check' }, {
  /** @override */
  _onButtonClick() {
    // ···
  }
}));