How to get the focused element with jQuery

Question

Using jQuery  how can I get the input element that has the caret s  cursor s  focus      Or in other words  how to determine if an input has the caret s focus

User · Answer

If you want to confirm if focus is with an element then    if      inputId   is   focus            your code

User · Answer

document activeElement     Will retrieve it without having to search the whole DOM tree as recommended on the jQuery documentation

User · Answer

Try this       focus   each function         alert  Focused Elem id      this id

User · Answer

focus   0  will give you the actual element        focus   will give you an array of elements  usually only one element is focused at a time so this is only better if you somehow have multiple elements focused

User · Answer

Try this      document  on  click  function        alert event target

User · Answer

Get the focused element  var  focused       focus        No jQuery  var focused   document activeElement      Does the element have focus  var hasFocus      foo   is   focus        No jQuery  elem     elem ownerDocument activeElement    Which one should you use  quoting the jQuery docs      As with other pseudo-class selectors  those that begin with a       it is recommended to precede  focus with a tag name or some other selector  otherwise  the universal selector       is implied  In other words  the bare     focus   is equivalent to      focus    If you are looking for the currently focused element     document activeElement   will retrieve it without having to search the whole DOM tree    The answer is   document activeElement   And if you want a jQuery object wrapping the element     document activeElement

User · Answer

How is it noone has mentioned    document activeElement id   I am using IE8  and have not tested it on any other browser  In my case  I am using it to make sure a field is a minimum of 4 characters and focused before acting  Once you enter the 4th number  it triggers  The field has an id of  year   I am using    if      year   val   length  gt   4  amp  amp  document activeElement id     year             action here

User · Answer

I ve tested two ways in Firefox  Chrome  IE9 and Safari    1     document activeElement  works as expected in Firefox  Chrome and Safari    2       focus   works as expected in Firefox and Safari   I moved into the mouse to input  name  and pressed Enter on keyboard  then I tried to get the focused element     1     document activeElement  returns the input text name as expected in Firefox  Chrome and Safari  but it returns input submit addPassword in IE9   2       focus   returns input text name as expected in Firefox and Safari  but nothing in IE   lt form action    gt       lt div id  block-1  class  border  gt           lt h4 gt block-1 lt  h4 gt           lt input type  text  value  enter name here  name  name   gt                       lt input type  button  value  Add name  name  addName   gt       lt  div gt       lt div id  block-2  class  border  gt           lt h4 gt block-2 lt  h4 gt           lt input type  text  value  enter password here  name  password   gt                       lt input type  submit  value  Add password  name  addPassword   gt       lt  div gt   lt  form gt

[javascript] How to get the focused element with jQuery?

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