There is such an HTML element

<button type="button" class="im-send-btn im-chat-input--send im-send-btn_static _im_send im-send-btn_send" aria-label="Отправить" data-tttype="2">Button </button>

It is necessary with the help of JS to make a click on this button using classes.

    2 answers 2

     document.querySelector('.im-send-btn.im-chat-input--send.im-send-btn_static._im_send.im-send-btn_send').onclick = function() { console.log('Вы кликнули кнопку') } 
     <button type="button" class="im-send-btn im-chat-input--send im-send-btn_static _im_send im-send-btn_send" aria-label="Отправить" data-tttype="2">Button </button> 

       var elem = document.querySelector( '.im-send-btn.im-chat-input--send.im-send-btn_static._im_send.im-send-btn_send' ); elem.onclick = function() { console.log('test'); } elem.click(); 
       <button type="button" class="im-send-btn im-chat-input--send im-send-btn_static _im_send im-send-btn_send" aria-label="Отправить" data-tttype="2">Button </button>