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Visual QuickStart Guide: JavaScript, Ninth Edition by Dori Smith, Tom Negrino

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18. Bookmarklets

You know that JavaScript can be used to control web browsers from inside your webpages. However, you can also use JavaScript to control your browser without using webpages, by using what are called bookmarklets. Bookmarklets are bookmarks that contain a call to the browser’s JavaScript interpreter instead of to an external URL (if you are more accustomed to the term favorites rather than bookmarks, bookmarklets can also be called favelets ...

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