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Describes the use of the Math. abs () method in JavaScript.

Source: Internet
Author: User
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Describes the use of the Math. abs () method in JavaScript.

This method returns the absolute value of a number.

Syntax

 

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Math. abs (x );

The following is the detailed information about the parameters:

  • X: a number

Return Value:

  • Returns the absolute value of a number.

Example:

 

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<Html>

<Head>

<Title> JavaScript Math abs () Method </title>

</Head>

<Body>

<Script type = "text/javascript">

 

Var value = Math. abs (-1 );

Document. write ("First Test Value:" + value );

 

Var value = Math. abs (null );

Document. write ("<br/> Second Test Value:" + value );

 

Var value = Math. abs (20 );

Document. write ("<br/> Third Test Value:" + value );

 

Var value = Math. abs ("string ");

Document. write ("<br/> Fourth Test Value:" + value );

</Script>

</Body>

</Html>

This produces the following results:

 

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First Test Value: 1

Second Test Value: 0

Third Test Value: 20

Fourth Test Value: NaN

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