php - How can registerJs work with beforaction() in yii2 -

php - How can registerJs work with beforaction() in yii2 -

i created module .then in side module before action calling registerjs not working.

public function beforeaction($action){ $js=yii::getalias('@webroot/assets_app/js/login.js'); $this->getview()->registerjs($js, \yii\base\view::pos_end); }

its showing undefined class constant 'pos_end'

it's in web namespace

\yii\web\view::pos_end

edit

just noticed, if want register js file need utilize registerjsfile. default position pos_end

so need is,

public function beforeaction($action){ $js = yii::getalias('@webroot/assets_app/js/login.js'); $this->getview()->registerjsfile($js); }

php yii2