jQuery Mobile: Up and Running > Utilities > Platform Utilities

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Platform Utilities

The framework provides us with some platform utilities that we can use to help web development. Table 6-4 shows the most useful platform utilities.

Table 6-4. Utilities available to query about the executing platform in $.mobile object

Method/property	Description
`orientationChangeEnabled`	If the native `orientationchange` event is available.
`gradeA()`	Returns `true` if the browser is an A-grade browser in the jQuery Mobile’s compatibility chart.
`urlHistory`	A collection of pages that were browsed inside jQuery Mobile without a page reload. Every element has `pageUrl`, `title`, and `transition`.
`getDocumentUrl()`	Returns the original document’s URL (the first load).

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