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Math.sign()

Get the sign of a number.

Signature

Math.sign(x: Number) => Number

Description

Gets the sign of a number. If x is positive, returns 1. If x is negative, returns -1.

Parameters

Parameter Type Required Description

x

Number

Yes

A number.

Return value

Type Description

Number

A number representing the sign of x:
1 = x is positive.
-1 = x is negative.

Examples

Math.sign(-3)
-1

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