click() function does not on any browser console

Question

When I open a website on the browser. Now I want to click button through javascript console which every browser has. The button have class and the website is not using jquery so the code will be pure javascript.

document.getElementsByClassName('btn-orange').trigger('click'); document.getElementsByClassName('btn-orange').click();

Thank you for taking time for helping me.

Answer 1

document.getElementsByClassName('btn-orange')[0].click();

这将起作用，因为document.getElementsByClassName（'btn-orange'）将为您提供一组选定的DOM元素，即使您只有一个具有此类名称的元素，它也会位于该数组的第一个位置，然后调用该元素上的点击事件。