8
How to check whether a value is numeric or not in jQuery
source link: https://www.laravelcode.com/post/how-to-check-whether-a-value-is-numeric-or-not-in-jquery
Go to the source link to view the article. You can view the picture content, updated content and better typesetting reading experience. If the link is broken, please click the button below to view the snapshot at that time.
How to check whether a value is numeric or not in jQuery
Use the jQuery.isNumeric() method
You can use the jQuery $.isNumeric() method to check whether a value is numeric or a number.
The $.isNumeric() returns true only if the argument is of type number, or if it's of type string and it can be coerced into finite numbers, otherwise it returns false.
Let's take a look at the following example to understand how it basically works:
<script>
// Return true (numeric)
$.isNumeric("-10")
$.isNumeric("0")
$.isNumeric(0xFF) /* Hexadecimal notation (0xFF represents the number 255) */
$.isNumeric("0xFF")
$.isNumeric(+10)
$.isNumeric(1.25e2) /* Exponential notation (1.25e2 represents the number 125) */
$.isNumeric("1.25e2")
$.isNumeric("13.417")
$.isNumeric(0144)
$.isNumeric(-0x56)
// Return false (non-numeric)
$.isNumeric("-0x52")
$.isNumeric("7.2xyz")
$.isNumeric("")
$.isNumeric({})
$.isNumeric(NaN)
$.isNumeric(null)
$.isNumeric(true)
$.isNumeric(Infinity)
$.isNumeric(undefined)
</script>
Author : Harsukh Makwana
Hi, My name is Harsukh Makwana. i have been work with many programming language like php, python, javascript, node, react, anguler, etc.. since last 5 year. if you have any issue or want me hire then contact me on [email protected]
Recommend
About Joyk
Aggregate valuable and interesting links.
Joyk means Joy of geeK