it's just too common a set of terms for google to be helpful. I'm looking for code to take an image, scale it to fit within certain constraints (i.e. set display height or width ...

JavaScript-loaded images can be indexed, Google's Martin Splitt confirms. Learn common indexing issues and best practices to ensure your JS images appear in search.

The image probably isn't loaded by that time. I mean, it's probably a couple milliseconds, if that, between when you assign that src and when you ask for the width and height.

Oleksii Trekhleb, software engineer at Uber, recently explored the use of dynamic programming to speed up a CPU-intensive content-aware image resizing algorithm. Developers may use content-aware resiz ...

If you want to use JavaScript to change the content of the robots meta tag, do not set the meta tag’s value to ‘noindex’.” Fixing images and lazy-loaded content.