Iframe parent window and Child Window mutual call method highlights _ javascript tips-js tutorial

Iframe: a collection of mutual call methods between parent and child windows. For more information, see. 1. The parent window calls the iframe subwindow method.
1. HTML Syntax:
2. Parent window: myFrame. window. functionName ();
3. subwindow: parent. functionName ();
Simply put, add a parent before the variable or function called in the subwindow.
4. source code of the parent window page:

The Code is as follows: