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13 lines
1.4 KiB
Markdown
13 lines
1.4 KiB
Markdown
Technical Dependencies
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======================
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The offline-editor-js projects includes but is not limited to the following dependencies:
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* localStorage. The limits vary by browser and is typically 5MBs per domain name. For additional information see W3C's webstorage specification, [Section 5](http://www.w3.org/TR/webstorage/).
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* indexedDB. Storage limits for indexedDB are not necessarily consistent across browsers. It's generally understood to be 50MB. Here is a Mozilla [document](https://developer.mozilla.org/en-US/docs/IndexedDB#Storage_limits) discussing limits across different browsers.
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* Advanced users of the library should be aware that JavaScript stores some strings as UTF-16. More information can be found in this Mozilla [article](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length).
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* If a user completely flushes their browser cache all queued edits, tiles as well as anything stored in local storage, IndexedDB, SQLite or even the appcache will most likely be lost.
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* Data stored by the library should persist if the browser is shutdown and restarted. However, this does not mean that your application will be returned to its correct state. A client web application's state has to be programmatically managed. This includes the state of items including but not limited to feature layers within your application.
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* Browser support for all the functionality in this library isn't gauranteed, of course.
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