Function hyphenate

06.Router/basic/js/vue.js:187–189

(str)

  var hyphenateRE = /([a-z\d])([A-Z])/g;

  function hyphenate(str) {
    return str.replace(hyphenateRE, '$1-$2').toLowerCase();
  }

  /**
   * Converts hyphen/underscore/slash delimitered names into