float.js

A little mirror class for introspecting the bit-patterns of JS numbers using typed arrays.

Example:

Math.PI.introspect().mantissa;     //             "1001001000011111101101010100010001000010110100011000"
Math.E.introspect().exponent;      //  "10000000000"
(9.0).introspect().toBitString();  // "0100000000100010000000000000000000000000000000000000000000000000"
(-Math.PI).introspect().negative;  // true

Interactively explore at http://dherman.github.com/float.js.

License

Copyright © 2012 Dave Herman

Licensed under the MIT License.