Read/Write bytes of float in JS

Question

Is there any way I can read bytes of a float value in JS? What I need is to write a raw FLOAT or DOUBLE value into some binary format I need to make, so is there any way to get a byte-by-byte IEEE 754 representation? And same question for writing of course.

Answer 1

Would this snippet help?

var parser = new BinaryParser
  ,forty = parser.encodeFloat(40.0,2,8) 
  ,twenty = parser.encodeFloat(20.0,2,8);  
console.log(parser.decodeFloat(forty,2,8).toFixed(1));   //=> 40.0
console.log(parser.decodeFloat(twenty,2,8).toFixed(1));  //=> 20.0