Can you elaborate on the rough seams between JavaScript and &quot;full on functional&quot;?<p>I&#x27;m not a believer in the FP vs. OO religion, and have historically been skeptical of the bind operator. That said, I think that both composition via objects and composition via functions have their place.<p>The pipeline operator attempts to make composition via functions more readable (left-to-right instead of right-to-left) and unless you think composition via functions is a bad idea in JS in all cases, I&#x27;m not sure what &quot;full-on functional&quot; has to do with it.