jQuery.isNumeric()    ** DEPRECATED **S2C Home « Utilities « jQuery.isNumeric()

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Numeric value detection.

Description

The jQuery.isNumeric() jQuery Type utility method, returns a boolean dependant upon the specified value being numeric.

Shorthand version $.isNumeric()

• Returns true for numeric values.

This method was deprecated in jQuery 3.3.

Syntax

Parameters

Return

A Boolean object.

jQuery.isNumeric( value ) ExampleTop

Return a boolean dependant upon the specified value being numeric.

In the example below when we press the button we test some values to see if they are numeric.

$(function(){
  $('#btn3').one('click', function(){
    $('#div3').append('Is null numeric? ' +  $.isNumeric(null) + '<br>');
    $('#div3').append('Is undefined numeric? ' +  $.isNumeric(undefined) + '<br>');
    $('#div3').append('Is "a" numeric? ' +  $.isNumeric("a") + '<br>');
    $('#div3').append('Is "-1" numeric? ' +  $.isNumeric("-1") + '<br>');
    $('#div3').append('Is -1 numeric? ' +  $.isNumeric(-1) + '<br>');
    $('#div3').append('Is +1 numeric? ' +  $.isNumeric(-1) + '<br>');
    $('#div3').append('Is 1.23 numeric? ' +  $.isNumeric(1.23) + '<br>');
    $('#div3').append('Is "1.6456456456e+1?" ' +  $.isNumeric("1.6456456456e+1") + '<br>');
    $('#div3').append('Is "0x00" numeric? ' +  $.isNumeric("0x00") + '<br>');
    $('#div3').append('Is false numeric? ' +  $.isNumeric(false) + '<br>');
    $('#div3').append('Is true numeric? ' +  $.isNumeric(true) + '<br>');
    $('#div3').append('Is NaN numeric? ' +  $.isNumeric(NaN) + '<br>');
    $('#div3').append('Is Infinity numeric? ' +  $.isNumeric(Infinity) + '<br>');
  });
});

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