$.isWindow(value)

Type guard that returns true when the value is the global window object.

Importing this module attaches isWindow to the $ factory as a static helper, mirroring jQuery’s $.isWindow. The check compares the value’s window property to itself, which is true only for window (and Window aliases such as iframe globals).

Signatures

$.isWindow(value: unknown): value is Window;

Parameters

• value (unknown) — the value to test.

Returns

true if value is a Window, otherwise false.

Examples

import $ from "dabbyjs";
import "dabbyjs/utils/iswindow/iswindow";

$.isWindow(window);             // true
$.isWindow(document);           // false
$.isWindow(null);               // false
$.isWindow(document.body);      // false

Notes

Included in the full build. The Dabby class also uses the internal guard to detect when $() is called with the window directly.