单击带有 javascript 的网页中的按钮 - 错误？

Question

Noob Question; HTML is

    <button aria-label="Navigate to page 40" data-page- 
     number="40" type="button" data-ember-action="" data- 
      ember- 
      action-582="582" data-is-animating-click="true">
       40
     </button>

I thought the code would be

       document.querySelector('button.Navigate.to.page.40').click()

But apparently this isn't a valid selector... what am I doing wrong?

Answer 1

You need to use the selector button[aria-label="Navigate to page 40"] :

 const button = document.querySelector('button[aria-label="Navigate to page 40"]'); console.log(button);

 <button aria-label="Navigate to page 40" data-page- number="40" type="button" data-ember-action="" data- ember- action-582="582" data-is-animating-click="true"> 40 </button>

Your selector button.Navigate.to.page.40 is valid, but it means: select a <button> which has classes of Navigate , to , page , and 40 (which of course isn't the case for this HTML).