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The Abs function of How to use abs function is one of the Math functions. It is used to return the absolute value of a specified expression. This article will introduce you to the specific usage of the Abs function.
Let’s first look at the syntax of the abs function
Math.abs( x ) ;
x is a number or valid numerical expression to find the absolute value .
If the parameter x is positive or negative, the abs() function will return the absolute value in How to use abs function.
If the parameter x is not a number, the abs() function will return NaN.
When the parameter x is Null, the abs() function returns 0 as the absolute value in How to use abs function.
Let’s look at a specific example
The code is as follows
<!DOCTYPE html>
</html>
<html>
<head>
<title> How to use abs function abs函数</title>
</head>
<body>
<h1> How to use abs function abs函数</h1>
<p id="Pos"> </p>
<p id="Neg"> </p>
<p id="Dec"> </p>
<p id="Neg_Dec"> </p>
<p id="Str"> </p>
<p id="Exp"> </p>
<p id="Null"> </p>
<p id="Multi"> </p>
<script>
document.getElementById("Pos").innerHTML = Math.abs(20);
document.getElementById("Neg").innerHTML = Math.abs(-20);
document.getElementById("Dec").innerHTML = Math.abs(10.45);
document.getElementById("Neg_Dec").innerHTML = Math.abs(-6.45);
document.getElementById("Str").innerHTML = Math.abs("How to use abs function");
document.getElementById("Null").innerHTML = Math.abs(null);
document.getElementById("Multi").innerHTML = Math.abs(2 + 55 - 77);
</script>
</body>
</html>The display effect on the browser is as follows
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