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javascriptieee-754
Jason S
Jason S

Reputation: 189656

converting between float <-> int in javascript

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.

Upvotes: 3

Views: 2041

Answers (2)

Alexander Yezutov
Alexander Yezutov

Reputation: 3214

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

Upvotes: 1

JaredMcAteer
JaredMcAteer

Reputation: 22536

javascript float from/to bits

From the answer: IEEE-754 Floating-Point Conversion

Upvotes: 4

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