The Window alert() method displays an alert popup in the browser with a message and OK button, and is used to display information to the user.

The window.atob() method decodes a base-64 encoded string.

The Window blur() method removes focus from a window.

The window.btoa() method encodes a string in base-64.

The Window clearInterval() method clears a timer set with the setInterval() method.

The Window clearTimeout() method clears a timer set with the setTimeout() method.

The Window close() method closes a browser window (or tab depending on how the user has their browser set up).

The Window confirm() method displays a dialog box with a message, an OK button, and Cancel button.

The Window focus() method sets focus to a window.

The window.getComputedStyle() method gets the computed CSS properties and values of an HTML element.

The Window moveBy() method moves a window a number of pixels, both horizontal and vertical, relative to its current coordinates.

The Window moveTo() method moves a window to a new horizontal and vertical position.

The window.open() method opens a new browser window/tab, depending on the browser settings and the parameter values.

The window.print() method opens a print dialog box, which lets the user select from printing options to print the contents of the window.

The Window prompt() method displays a dialog box that prompts the user for input.

The Window resizeBy() method resizes a window by a specified amount.

The Window resizeTo() method resizes a window to a specified width and height.

The window.scrollBy() method scrolls the document by the specified number of pixels, but only if the page is longer than the window.

The window.scrollTo() method scrolls the document to specified coordinates.