jQuery isNumeric() Method
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jQuery isNumeric() Method
The jQuery isNumeric() method determines whether its argument represents a JavaScript number.
Example
HTML Editor
<!DOCTYPE html>
<html lang="en-US">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
</head>
<body>
<h1>jQuery isNumeric() Method</h1>
<p>Click on the button and check your console</p>
<button>Click Me</button>
<script>
$(document).ready(function(){
$("button").click(function(){
// true (numeric)
console.log($.isNumeric("-10"));
console.log($.isNumeric("0"));
console.log($.isNumeric(0xFF));
console.log($.isNumeric("0xFF"));
console.log($.isNumeric("8e5"));
console.log($.isNumeric("3.1415"));
console.log($.isNumeric(+10));
console.log($.isNumeric(0144));
// false (non-numeric)
console.log($.isNumeric("-0x42"));
console.log($.isNumeric("7.2acdgs"));
console.log($.isNumeric(""));
console.log($.isNumeric({}));
console.log($.isNumeric(NaN));
console.log($.isNumeric(null));
console.log($.isNumeric(true));
console.log($.isNumeric(Infinity));
console.log($.isNumeric(undefined));
});
});
</script>
</body>
</html>
Syntax
$.isNumeric(value);
Parameter Values
| Value | Type | Explanation |
|---|---|---|
| value | Required | Specifies a value to be tested. |
Return Values
| Value | Explanation |
|---|---|
| true | The argument is a JavaScript number. |
| false | The argument is NOT a JavaScript number. |
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