No, you can't put JavaScript in a Clarion Report, because
a) the clarion report engine does not support it and
b) JavaScript is a language, not an output
what you meant to ask was - can you put a graph in a report? The answer to that is yes - construct the graph in JavaScript - perhaps in Chrome Explorer, or externally to your program, save that image as a PNG file, and then include the PNG on the report.
Cheers
Bruce