22. Storage
Most HTML 5–compatible browsers provide web applications with the ability to read and write key/value pairs from/to a local storage facility and to read and write data from/to a local SQL database. Neither of those capabilities is a direct functions of HTML but instead something typical browsers made available to JavaScript code running within the browser.
These capabilities were originally delivered through implementations of the W3C Web SQL Database Specification (www.w3.org/TR/webdatabase) and the W3C Web Storage API Specification (www.w3.org/TR/webstorage). The Web Storage API is still valid, but the W3C has stopped work on the Web SQL specification, and instead developers typically work with the SQLite (www.sqlite.com) database ...
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