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Number.isInteger() function in JavaScript
The isInteger() function of the Number object accepts a number and determines if it is finite number. If the given number is finite it returns true else, it returns false.
Syntax
Its Syntax is as follows
Number.isInteger(100/0);
Example
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var result = Number.isFinite(100/0);
if(result) {
document.write("Given number is finite");
}else {
document.write("Given number is infinite");
}
</script>
</body>
</html>Output
Given number is infinite
Example
In addition to equation you can also pass positive number, negative number, zero and an equation as a parameter to this function.
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var result1 = Number.isFinite(45);
document.write(result1);
document.write("<br>");
var result2 = Number.isFinite(-38);
document.write(result2);
document.write("<br>");
var result3 = Number.isFinite(0);
document.write(result3);
document.write("<br>");
var result4 = Number.isFinite("Tutorialspoint");
document.write(result4);
</script>
</body>
</html>Output
true true true false
Updated on: 25-Jun-2020
31 Views
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