AI-generated Key Takeaways
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The function calculates the number of one-bits in the 64-bit two's complement binary representation of a number.
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The function is used as
Number.bitCount(). -
It accepts a single number input and returns a number.
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Examples demonstrate its use with positive, negative, and hexadecimal values in JavaScript and Python.
| Usage | Returns |
|---|---|
Number.
bitCount
()
|
Number |
| Argument | Type | Details |
|---|---|---|
|
this:
input
|
Number | The input value. |
Examples
Code Editor (JavaScript)
print ( ee . Number ( 0 ). bitCount ()); // [0] print ( ee . Number ( 1 ). bitCount ()); // [1] print ( ee . Number ( 2 ). bitCount ()); // [1] print ( ee . Number ( 3 ). bitCount ()); // [2] print ( ee . Number ( 0xFFFF ). bitCount ()); // [16] // https://en.wikipedia.org/wiki/Two's_complement signed values. print ( ee . Number ( - 1 ). bitCount ()); // [64] print ( ee . Number ( - 1 , ee . PixelType . int8 ()). bitCount ()); // [64] print ( ee . Number ( - 2 ). bitCount ()); // [63]
import ee import geemap.core as geemap
Colab (Python)
display ( ee . Number ( 0 ) . bitCount ()) # [0] display ( ee . Number ( 1 ) . bitCount ()) # [1] display ( ee . Number ( 2 ) . bitCount ()) # [1] display ( ee . Number ( 3 ) . bitCount ()) # [2] display ( ee . Number ( 0xFFFF ) . bitCount ()) # [16] # https://en.wikipedia.org/wiki/Two's_complement signed values. display ( ee . Number ( - 1 ) . bitCount ()) # [64] display ( ee . Number ( - 1 ) . toInt8 () . bitCount ()) # [64] display ( ee . Number ( - 2 ) . bitCount ()) # [63]
