小编Kar*_*cht的帖子

我试图从链接函数添加一个ng-class属性到自定义指令.但是在添加ng-class属性后使用编译功能时,会抛出类似"RangeError:超出最大调用堆栈大小"的错误

请参阅下面的代码

MyApp.directive('twinField',function($compile){
return {
    restrict:'A',
    require:'ngModel',
    scope:{
        fval:'='
    },
    link:function(scope,ele,attr,ctrl){
        ctrl.$validators.compareTo=function(val){
            //alert(scope.fval)
            return scope.fval==val
        }
        scope.$watch('fval', function(newValue, oldValue, scope) {
            ctrl.$validate()
        });
        ele.attr("ng-class","addForm.cpassword.$error.compareTo?'errorpswd':''")//=""
        $compile(ele)(scope);
    }
}

})

当我直接在html中添加ng-class时它正在工作.

我正在尝试使用hyper作为提供程序运行vagrant,遵循本指南.但当我运行'vagrant up'时,我收到以下错误:

    $ vagrant up
C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse': (<unknown>): found a tab character that violate intendation while scanning a plain scalar at line 21 column 7 (Psych::SyntaxError)
        from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/psych.rb:370:in `parse_stream'
        from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/psych.rb:318:in `parse'
        from C:/HashiCorp/Vagrant/embedded/lib/ruby/2.2.0/psych.rb:245:in `load'
        from E:/www/Homestead/Vagrantfile:20:in `block in <top (required)>'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/v2/loader.rb:37:in `call'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/v2/loader.rb:37:in `load'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/loader.rb:113:in `block (2 levels) in load'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/loader.rb:107:in `each'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/loader.rb:107:in `block in load'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/loader.rb:104:in `each'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/config/loader.rb:104:in `load'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/vagrantfile.rb:28:in `initialize'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/environment.rb:740:in `new'
        from C:/HashiCorp/Vagrant/embedded/gems/gems/vagrant-1.8.3/lib/vagrant/environment.rb:740:in `vagrantfile'
        from …