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HTML

AaronDavid Hammond
AaronDavid Hammond
6,303 Points

In a video Nick mentioned that using javascript to display an img might not work for a content parser. Content Parser?

In a video I just watched on responsive images, Nick mentioned that using javascript to display an img. might not work for a content parser. What is a content parser?

1 Answer

Paul Yabsley
Paul Yabsley
46,713 Points

I think he probably means a piece of software which automatically looks at the html on a page and gets (parses) the content. A search engine, for example, might look at the markup of a web page in order to index it. Or something like the built in reader view in mobile safari which strips out everything but the text. It has to parse the content in order to work out what to keep.

If an image is displayed using javascript at the time of the page loading then it might not be there when a content parser looks at it as they don't work by loading the page in the same way as a browser.