JavaScript pack ("d") - binary strings

Question

I am trying to replicate a Perl and PHP style package and unpack functions in JavaScript.

Unsigned integers were light enough, so my package ('n') and pack ('N') are fine. But now I have a shortage of computer science - an obstacle, and I don’t know where to start with the package ('d') for packing standard JavaScript floating point.

Is there a JavaScript library there?

If not, is there a good resource where I can learn this? I am well versed in bitwise and binary level operations in JS, I just don't know where to start with logic.

Thank.

Answer 1

: http://phpjs.org/functions/pack:880