src/rules.js
function(name) {
    for (var i = 0, len = this.asyncRules.length; i < len; i++) {
      if (this.asyncRules[i] === name) {
        return true;
      }
    }
    return false;
  }
function(name) {
    for (var i = 0, len = this.asyncRules.length; i < len; i++) {
      if (this.asyncRules[i] === name) {
        return true;
      }
    }
    return false;
  }
function ( name ) { for ( var i = 0 , len = this . asyncRules . length ; i < len ; i ++ ) { if ( this . asyncRules [ i ] === name ) { return true ; } } return false ; }
Determine if given rule is async

@param  {string}  name
@return {boolean}
Determine if given rule is async