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The Sgn Function

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The Sgn function returns an integer that indicates the sign of a specified number.

Syntax

Sgn(number)

Parameter Description
number Required. A valid numeric expression

If number is:

  • >0 - Sgn returns 1
  • =0 - Sgn returns 0
  • <0 - Sgn returns -1

Example 1

document.write(Sgn(15))
Output:
1

Example 2

document.write(Sgn(-5.67))
Output:
-1

Example 3

document.write(Sgn(0))
Output:
0


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