Example of calling js function from iframe sub-parent page
1. If the iframe subpage calls the parent page js function
The subpage only needs to write window.praent to call the parent page function. For example, when calling the a() function, it is written as:
window.parent.a();
The child page takes the value of the tag in the parent page. For example, the id of the tag is "test", then:
window.parent.document.getElementById("test").value;
jQuery方法为：
$(window.parent.document).contents().find("test").val();But I found this in the chrome browser The method is invalid! After checking for a long time, I found out that in Chrome 5+, window.parent cannot run under the file:// protocol, but after it is released, it can run under the http:// protocol. This method supports IE and Firefox browsers.
2. The iframe parent page calls the subpage js function
这个就稍微复杂一些，下面的方法支持ie和firefox浏览器：
document.getElementById('ifrtest').contentWindow.b();
子页面取父页面中的标签中的值，比如该标签的id为“test”,则：
document.getElementById("test").value;Note: ifrtest is the id of the iframe frame, and b() is the subpage js function. The contentWindow attribute is the window object where the specified frame or iframe is located, and can be omitted under IE.
For more related articles on examples of js function calls for iframe child and parent pages, please pay attention to the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1384
52
How do I create and publish my own JavaScript libraries?
Mar 18, 2025 pm 03:12 PM
Article discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.
How do I optimize JavaScript code for performance in the browser?
Mar 18, 2025 pm 03:14 PM
The article discusses strategies for optimizing JavaScript performance in browsers, focusing on reducing execution time and minimizing impact on page load speed.
What should I do if I encounter garbled code printing for front-end thermal paper receipts?
Apr 04, 2025 pm 02:42 PM
Frequently Asked Questions and Solutions for Front-end Thermal Paper Ticket Printing In Front-end Development, Ticket Printing is a common requirement. However, many developers are implementing...
Who gets paid more Python or JavaScript?
Apr 04, 2025 am 12:09 AM
There is no absolute salary for Python and JavaScript developers, depending on skills and industry needs. 1. Python may be paid more in data science and machine learning. 2. JavaScript has great demand in front-end and full-stack development, and its salary is also considerable. 3. Influencing factors include experience, geographical location, company size and specific skills.
How do I debug JavaScript code effectively using browser developer tools?
Mar 18, 2025 pm 03:16 PM
The article discusses effective JavaScript debugging using browser developer tools, focusing on setting breakpoints, using the console, and analyzing performance.
How to merge array elements with the same ID into one object using JavaScript?
Apr 04, 2025 pm 05:09 PM
How to merge array elements with the same ID into one object in JavaScript? When processing data, we often encounter the need to have the same ID...
How do I use source maps to debug minified JavaScript code?
Mar 18, 2025 pm 03:17 PM
The article explains how to use source maps to debug minified JavaScript by mapping it back to the original code. It discusses enabling source maps, setting breakpoints, and using tools like Chrome DevTools and Webpack.
Demystifying JavaScript: What It Does and Why It Matters
Apr 09, 2025 am 12:07 AM
JavaScript is the cornerstone of modern web development, and its main functions include event-driven programming, dynamic content generation and asynchronous programming. 1) Event-driven programming allows web pages to change dynamically according to user operations. 2) Dynamic content generation allows page content to be adjusted according to conditions. 3) Asynchronous programming ensures that the user interface is not blocked. JavaScript is widely used in web interaction, single-page application and server-side development, greatly improving the flexibility of user experience and cross-platform development.
