Detailed explanation of the windows.open() method:
window.open(URL, name, features, replace) is used to load the specified URL into a new or existing window and return a Window object representing the new window. It has 4 optional parameters:
URL: An optional string declaring the URL of the document to be displayed in a new window. If this parameter is omitted, or its value is an empty string, then the new window will not display any documents.
name: An optional string that is a comma-separated list of features including numbers, letters, and underscores that declare the name of the new window. This name can be used as the value of the attribute target that marks <a> and <form> . If this parameter specifies an existing window, the open() method directly uses this window. In this case, the features parameter that specifies the window feature will be ignored. Reserved names: "_ blank", "_ parent", "_ top" refer to the display location of the new window.
features: (non-standard, this parameter is recommended) An optional string that declares the characteristics of the standard browser to be displayed in the new window. If this parameter is omitted, the new window will have all standard features. In the following window features table, we explain the format of the string in detail.
replace: an optional boolean value. Specifies whether the URL loaded into the window creates a new entry in the window's browsing history or replaces the current entry in the browsing history. Supported values: true - URL replaces the current entry in the browsing history; false - URL creates a new entry in the browsing history.
The new top-level browser window is created by the method Window.open(). When calling this method, the return value of the open() call should be stored in a variable, and then the variable should be used to reference the new window. The opener property of a new window in turn refers to the window that opens it.
Please do not confuse the method Window.open() and the method Document.open(). The functions of these two are completely different. To make your code clear, use Window.open() instead of open().
Most browsers have added pop-up filtering systems. Usually the open method is called only when the user manually clicks a button or link. JavaScript code usually fails when trying to open a popup when the browser initially loads (or uninstalls).
Window Features
channelmode=yes|no|1|0 Whether to use theater mode to display the window. Default is no.
directories=yes|no|1|0 Whether to add a directory button. Default is yes.
fullscreen=yes|no|1|0 Whether to use fullscreen mode to display the browser. The default is no. A window in full screen mode must be in theater mode at the same time.
height=pixels The height of the document display area in the window. In pixels.
left=pixels The x coordinate of the window. In pixels.
location=yes|no|1|0 Whether to display the address field. The default is yes.
menubar=yes|no|1|0 Whether to display the menu bar. The default is yes.
resizable=yes|no|1|0 Is the window adjustable? The default is yes.
scrollbars=yes|no|1|0 Whether to display scrollbars. The default is yes.
status=yes|no|1|0 Whether to add status bar. The default is yes.
titlebar=yes|no|1|0 Whether to display the title bar. The default is yes.
toolbar=yes|no|1|0 Whether to display the browser's toolbar. The default is yes.
top=pixels window y coordinate.
width=pixels The width of the document display area of the window. In pixels.
window.close() method:
If a Window object w has been created, you can close the window w.close() in this way; and in this window, use window.close();
Note: The window.close() method must be called explicitly to avoid confusion with the document.close() method;
Most browsers only allow scripts to automatically close windows created by scripts. If you want to close other windows, you can use a dialog box to get user confirmation or cancellation; window.close() cannot close a form embedded in the window;
Even if a window is closed, the Window object representing it still exists. A closed window will have a closed property with a value of true, its document will be null, and its method will not usually work anymore.
The above is a detailed explanation of the windows.open() and windows.close() methods in JavaScript introduced to you by the editor. I hope it will be helpful to you. If you have any questions, please leave me a message and the editor will reply to you in time. Thank you very much for your support to Wulin.com website!