jQuery Mobile: When to Use `pageinit` vs. `$(document).ready()`?
Dec 17, 2024 am 05:01 AM
jQuery Mobile: Page Events vs. Document Ready
Differences and Usage
While $(document).ready() is traditionally used for DOM element manipulation, it may not be suitable for jQuery Mobile applications due to its Ajax-based page loading. This can lead to code execution before pages are fully loaded.
In jQuery Mobile, page events provide better control over page execution. $(document).on('pageinit') is triggered when a page is first loaded into the DOM and is an ideal place to initialize page-specific functionality.
Benefits of Using Page Events
- Avoid code execution before pages are loaded.
- Execute code specific to a particular page.
- Control the execution order of events during page transitions.
Page Event Order During Transitions
When transitioning between pages, events are triggered in the following order:
- pagebeforecreate (page B)
- pagecreate (page B)
- pageinit (page B)
- pagebeforehide (page A)
- pageremove (page A)
- pagehide (page A)
- pagebeforeshow (page B)
- pageshow (page B)
Data Manipulation Between Pages
Parameters can be passed from one page to another using the dataUrl and data options in $.mobile.changePage. These parameters can be retrieved using $(this).data("url") or $(this).data("data") in the target page's pagebeforeshow event.
Conclusion
Page events provide more precise control over code execution in jQuery Mobile applications. By leveraging these events, developers can avoid common pitfalls and ensure consistent execution across pages.
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