Avatar for Username

Sök i support

Akta dig för supportbedrägerier: Vi kommer aldrig att be dig att ringa eller skicka ett sms till ett telefonnummer eller dela personlig information. Rapportera misstänkt aktivitet med alternativet "Rapportera missbruk".

Läs mer

Denna tråd har arkiverats. Ställ en ny fråga om du behöver hjälp.

focus in javascript

  • 1 svar
  • 0 har detta problem
  • 1 visning
  • Senaste svar av cor-el

drwho1
drwho1
more options

Trying to use onfocus , onfocusout, or finding which element has focus has lead to a problem. In the program I give at the end, if you click out of a input element I can not find where the focus goes. FF does not do both things - focus out and focus on at the same time. I have tried multitude ways of trying to find where focus goes when leaving this element. Have not tried oither elements.

My code: 

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>

<body style="padding-left: 20px">
<input onfocusout="myFunction(0);" ><br><br>
<input onfocusout="myFunction(1);" ><br><br>
<input onfocusout="myFunction(2);" ><br><br>
<input onfocusout="myFunction(3);" >

<script>
function myFunction(top){
    alert(top);
    var bottom = document.activeElement.id;
    alert(bottom);    
}
</script>
</body>
</html>

Trying to use onfocus , onfocusout, or finding which element has focus has lead to a problem. In the program I give at the end, if you click out of a input element I can not find where the focus goes. FF does not do both things - focus out and focus on at the same time. I have tried multitude ways of trying to find where focus goes when leaving this element. Have not tried oither elements. My code: <pre><nowiki><!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> </head> <body style="padding-left: 20px"> <input onfocusout="myFunction(0);" ><br><br> <input onfocusout="myFunction(1);" ><br><br> <input onfocusout="myFunction(2);" ><br><br> <input onfocusout="myFunction(3);" > <script> function myFunction(top){ alert(top); var bottom = document.activeElement.id; alert(bottom); } </script> </body> </html></nowiki></pre><br>

Ändrad av cor-el

Alla svar (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Try to ask advice on a web development oriented forum.

This might be easier to see what is happening. 

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
</head>

<body style="padding-left: 20px">
<input onfocusin="myFunction('I:0');" onfocusout="myFunction('O:0');" ><br><br>
<input onfocusin="myFunction('I:1');" onfocusout="myFunction('O:1');" ><br><br>
<input onfocusin="myFunction('I:2');" onfocusout="myFunction('O:2');" ><br><br>
<input onfocusin="myFunction('I:3');" onfocusout="myFunction('O:3');" ><br><br>

<textarea id="output" cols="100" rows="30"></textarea>

<script>
 function myFunction(top){
  document.querySelector('#output').value+=top+' :: ';
  var bottom = document.activeElement.nodeName;
  document.querySelector('#output').value+=bottom+'\n';
}
</script>
</body>
</html>