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<!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>
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