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I have a javascript program (running in jsdb which uses Mozilla Spidermonkey 1.8, not in a browser) that I need to convert float and doubles to/from the appropriate number of bytes of their IEEE representations. Java has Float.floatToIntBits() and Float.intBitsToFloat() and similar methods for Double.

Is there a way to compute these functions in Javascript? (and yes, I know that all javascript numbers are essentially of type double)

I guess I could follow the algorithms in the javadoc for Double.longBitsToDouble() and Float.intBitsToFloat() but that only covers one direction, and I need both.

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javascript float from/to bits

From the answer: IEEE-754 Floating-Point Conversion

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Just took a look at the Javascript in the babbage.cs.qc.edu site -- It may produce correct answers, and may work well on the online calculator, but it's horribly written & not suitable for reuse in my opinion.
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As i know, javascript doesn't have such native methods.

Here is some sort of things, you want to have. Please examine the source code: http://babbage.cs.qc.edu/IEEE-754/IEEE-754hex32.html

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