Window. open code that defines how a window is opened

Window. open is often used in webpage development. How can we define the window opening method, such as hyperlink, button, and new window opening?

Below are some examples of code, which are not technical enough for your convenience.

It is easy to open the current window. to open it in a new window, change self in the following code to _ blank or new

<A onClick = "window. open ('"http://www.bkjia.com"', '_ self', 'rollbars = no, resizable = no, width = 641, height = 480, top = 50, left = 50 ') "> fire school </a>
<A href = javascript: window. open ('"http://www.bkjia.com"', '_ self', '')> fire school </a>
<Button onclick = window. open ('"http://www.bkjia.com"', '_ self', '')> fire school </button>
<A href = "http://www.bkjia.com" onclick = "window. open ('" http://www.bkjia.com "', '_ self',''); return false "> fire school </a>