To check if an opened browser window is closed, you can use the closed
property in referenced window object in JavaScript.
// Check if the opened browser
// window is closed or not
window.closed; // false
- The property returns a boolean
true
if the window is closed andfalse
if the window is in the opened state.
For example to open a new browser window with google.com
as the starting page, you can use window.open()
method like this,
// Open a new browser window
const openedWindow = window.open(
"https://google.com",
"Google Search",
"width=800,height=600,resizable,scrollbars"
);
Note: To know more about using the using window.open()
method check out the blog on How to open and close a new browser window using JavaScript?.
The openedWindow
contains the reference to newly opened window properties and methods.
Now you can check if the newly opened window is closed or is currently in the opened state using the closed
property in the openedWindow
object.
It can be done like this,
// Open a new browser window
const openedWindow = window.open(
"https://google.com",
"Google Search",
"width=800,height=600,resizable,scrollbars"
);
// check if the window is in opened or closed state
console.log(openedWindow.closed); // false
That's it! 😃