Well, today I learned that <!-- this --> is syntactically acceptable JavaScript
Specifically, `<!--` has the same effect as `//` i.e. it begins a single-line comment. (`-->` has no special meaning at all.)
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I can't find any reference to this in the specification, but seemingly every JavaScript engine accepts it, for obvious historical reasons
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It's so you could do <script type="text/javascript"><!-- console.log('hi'); //--></script> and avoid interpreting JS as HTML
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they're there so pages can embed Javascript and still run on netscape 1.0, no?
Thanks. Twitter will use this to make your timeline better. UndoUndo
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but it's only for single-line stuff?
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I thought it was advised for multiline too to hide from non js browsers (and maybe be xhtml compliant)
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iirc it was originally to allow for XHTML to parse cleanly (see: http://stackoverflow.com/questions/66837/when-is-a-cdata-section-necessary-within-a-script-tag …) and then got grandfathered in for compatibility
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(even though XHTML is more or less dead in practice now)
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