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In particular, I made it possible to generate a new document by loading, e.g. javascript:'hello, world', but also (key for bookmarklets) to run arbitrary script against the DOM of the current document, e.g. javascript:alert(document.links[0].href). The difference is that the latter kind of URL uses an expression that evaluates to the undefined ...
Using the above format is discouraged. The request is redirected to the long-form URL, including a 14-digit datetime stamp, for the latest archive copy thereby defeating the purpose of using the archive to link directly to a specific old version of the page. Likewise, a similar archive URL but with the number 1000 links to the oldest archive copy.
Bookmarklets are JavaScript programs stored as bookmarks. The term is a portmanteau of the words bookmark and applet. Bookmarklets are possible because the JavaScript URI scheme allows JavaScript programs to be stored as URIs, which can be stored in bookmarks. Bookmarklets have access to the current page, which they may inspect and change.
Learn how to enable JavaScript in your browser to access additional AOL features and content.
The syntax of JavaScript is the set of rules that define a correctly structured JavaScript program. The examples below make use of the log function of the console object present in most browsers for standard text output .
This is an accepted version of this page This is the latest accepted revision, reviewed on 18 January 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
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If you hover over a diff link or a link to an old revision, you can revert like this: Reverting using popups: hover over a diff link or a link to an old revision and select revert Note that if you hover over a diff link, pressing revert will always revert to the older of the two revisions being compared.