使用javascript“点击”没有ID的提交按钮

Question

Here is the submit button i would like to 'click' using javascript.

<input type="submit" name="REG_BTN" value="Submit Changes">

I am trying to use something along the lines of...

document.getElementsByTagName('submit')[0].click();

to 'click' the button, but it does not work. I am writing a script to run in browsers so i do not have the ability to change any of the aspects of the submit button. I am new to javascript so it may just be something simple that i am not picking up. Is there another way to achieve this?

Answer 1

The tagName for that element is INPUT ; there are no elements with tag name submit . Try this:

document.getElementsByName('REG_BTN')[0].click();

Answer 2

If page is complete loading first, and use querySelector (CSS) and click.

'

if (document.readyState=='complete'){
  document.querySelector('input[type*="submit"]').click();
}

'