JavaScript Tutorial/Global/isFinite

Материал из Web эксперт
Перейти к: навигация, поиск

Global.isFinite()

The isFinite() method is used to determine if a variable has finite bounds.



   <source lang="javascript">

<html> 

   <body>
   <script lanuguage="JavaScript">
   
   </script>
   <form name="form1">
   Enter a number or character into the text box and then click the check value
   button to verify if the input is a number.
   


   <input type="text" name="text1" size=3>
   


   <input type="button" value="Check value" onClick="checkNum()">
   

   </form>
   </body>
   </html></source>
Источник — «http://www.wbex.ru/index.php?title=JavaScript_Tutorial/Global/isFinite&oldid=9211»