How to write js as yii2?

Question

JavaScript

<?php
$js = <<<JS
$(function () {

            $("p").css(
            {
                color: "green",
                backgroundColor: "lightgray"
            });

        })
    
JS;

$this->registerJs($js);

?>

Where is the mistake ??

Answer 1

Maybe a gap is needed here?
<<< JS

Answer 2

I prefer "standard":

...
?>
<script>
...
</script>
<?php
...

<<< JSIt makes sense to use it only if this script will be "attached" to the widget being created that provides for this, that is, if you want to process the script on the server.