JQuery .isNumeric

Question

I have a text box with an id of EmpNum. I cannot figure out how to use jQuery's isNumeric to check to see if the value is numeric or not.

I tried:

    ('#.EmpNum').IsNumeric

but that did not work.

The documentation is here: api.jquery.com/jQuery.isNumeric You have to understand the difference between methods and static functions... — Šime Vidas
– Šime Vidas, Commented Dec 1, 2011 at 15:02

Ya Zhuang · Accepted Answer · 2011-12-01 15:00:43Z

49

according to http://api.jquery.com/jQuery.isNumeric/

it's :jQuery.isNumeric(value)

so, it should be $.isNumeric($("#EmpNum").val())

answered Dec 1, 2011 at 15:00

Ya Zhuang

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Comments

w5m · Accepted Answer · 2016-05-18 10:56:14Z

15

Shouldn't it be more like...

if($.isNumeric($('#EmpNum').val()))

edited May 18, 2016 at 10:56

w5m

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answered Dec 1, 2011 at 14:59

Laurence Burke

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1 Comment

jabclab Over a year ago

This answer is correct; here's the documentation to compliment his answer.

aziz punjani · Accepted Answer · 2011-12-01 15:01:00Z

5

Pass in the value as an argument to isNumeric. Also make sure you are using jQuery version 1.7 as this was added in 1.7.

$.isNumeric( $('#EmpNum').val() )

answered Dec 1, 2011 at 15:01

aziz punjani

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Comments

Ullas · Accepted Answer · 2018-09-17 11:19:47Z

4

it should be like this

$.isNumeric($('#EmpNum').val());

edited Sep 17, 2018 at 11:19

Ullas

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answered Feb 10, 2016 at 6:04

homi

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Comments

IVIike · Accepted Answer · 2020-02-26 06:35:16Z

2

Depending on what version of jQuery you are using, but as "$.isNumeric()" function is deprecated (https://jquery.com/upgrade-guide/3.0/#breaking-change-jquery-isnumeric-and-custom-tostring) since jQuery Core 3.0 Update, I found a custom solution for this problem (originally posted here: https://stackoverflow.com/a/9716488/3323790):

function isNumeric(n) {
    return !isNaN(parseFloat(n)) && isFinite(n);
}

answered Feb 26, 2020 at 6:35

IVIike

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Comments

gaurav gupta · Accepted Answer · 2017-08-30 06:26:31Z

1

You Should use simple and easy way like:

var value=$('#txtNumber').val();

if($.isNumeric(value))

{

//write your code here

}

answered Aug 30, 2017 at 6:26

gaurav gupta

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Comments

Rich O'Kelly · Accepted Answer · 2011-12-01 15:00:33Z

0

Try the following:

$.isNumeric($('#EmpNum').text())

Also the isNumeric method was only added in version 1.7, which version are you using?

See here for jsFiddle.

answered Dec 1, 2011 at 15:00

Rich O'Kelly

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Comments

Paul Roub · Accepted Answer · 2016-05-27 14:37:45Z

0

For me $.isNumeric($('#EmpNum').val()); did not work.

I had to use this:

var temp = $('#EmpNum').val();

$.isNumeric(temp);

edited May 27, 2016 at 14:37

Paul Roub

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answered May 27, 2016 at 14:29

Justin Lachapelle

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