Ruby on Rails

var submit_messages;

$(document).on('turbolinks:load', function () {
    submit_messages()
})

submit_messages = function () {
    $('#message_content').on('keyDown', function (event) {
        if (event.keyCode === 13) {
            $('input').click()
            event.target.value = ''
            event.preventDefault()
            console.log('yes we hit enter!')
        }
        
    })
    
}

I got this from a youtube video titled Rails 6 - Real Time Chat App What doesn't make sense to me is why do we only clear the field if the enter key is pressed, why doesn't that work anyway (it doesn't clear the field) and why doesn't it log to console 'yes we hit enter!'

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