Math.abs()
JavaScript 1.0+, ECMAScript 1.0+, JScript 1.0+ Nav2+, NES2+, IE 3+, Opera3+ Syntax
math.abs(num)
Description
The abs() method of the Math object is used to calculate the absolute value of num compared to the Math object on which it is invoked.
Example
Listing 6.151 shows how to use the abs() method and what it returns.
Listing 6.151 Example of abs() Method
<html> <body> <script language="JavaScript"> <!–– Hide // function calculates the absolute value of the input number function doMath(){ var inputNum=document.form1.input.value; var result = Math.abs(inputNum); document.form1.answer.value = result; } // End Hide ––> </script> <form name=form1> This example calculates the absolute value of the number entered. <br><br> Enter ... |
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