Checking textbox is empty

Checking textbox is empty or not- Using JavaScript validation statement we can check textbox is empty or not.

E.g.

<html> 
<head> 
<title>Checking textbox is empty or not</title> 
</head> 
<body>
Check textbox is empty or not!  
<form name="form1">
Enter text:<input type="text" name="txtempty">
<input type="button" onclick="check()" value="Check">
</form>
<script language="javascript">
function check()
{
 if(document.form1.txtempty.value.length==0)
  {
    alert("Textbox is empty" + "\nIf you like this post then please \nshare it using share buttons \ngiven below")
  }
else
{
alert("Textbox is not empty" + "\nIf you like this post then please \nshare it using share buttons \ngiven below")
}
 }
</script>
</body> 
</html>

Check Output: Checking textbox is empty or not Check textbox is empty or not!

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