jQuery - on change input text

Question

I am trying to make a function which will execute when the value of a text input field is changed  The value of the field changes when a table cell is clicked  not on keyup  nor paste  I tried it like this       kat   change function         alert  Hello          And I have the text field    lt input type  text  id  kat  value  0   gt    but it isn t working  Any help

User · Answer

This works for me on all browsers and Jquery <= v1.10

$('#kat').on('keyup', function () {
    alert("Hello");
});

or as it seems you want

$('#kat').on('click', function () {
    alert("Hello");
});

Textbox input field change event fires as you would expect it to, the jQuery .Change event only works correctly on html5 supported browsers

User · Answer

This is from a comment on the jQuery documentation page   In older  pre-HTML5 browsers   quot keyup quot  is definitely what you re looking for  In HTML5 there is a new event   quot input quot   which behaves exactly like you seem to think  quot change quot  should have behaved - in that it fires as soon as a key is pressed to enter information into a form     element   bind  input  function

User · Answer

This worked for me  var change temp           url key   bind  keydown keyup  function e       if e type     keydown            change temp     this  val            return            if   this  val      change temp              add the code to on change here

User · Answer

Try this       kat   on  input  function e    alert  Hello

User · Answer

I recently was wondering why my code doesn t work  then I realized  I need to setup the event handlers as soon as the document is loaded  otherwise when browser loads the code line by line  it loads the JavaScript  but it does not yet have the element to assign the event handler to it  with your example  it should be like this     document  ready function             kat   change function              alert  Hello

User · Answer

The jQuery documentation says this  It is also displayed  the handler execution result  if you change the text in the field and then click away  If the field loses focus without the contents having changed  though  the event is not triggered     Try the keyup and keydown events  like this       kat   keydown function        alert  Hello

User · Answer

function search             var query value      input search   val               b search-string   html query value           if query value                        ajax                   type   POST                   url   search php                   data    query  query value                    cache  false                  success  function html                         alert html                          ul results   html html                                              return false                    input search   live  keyup   function e            clearTimeout   data this   timer              var search string     this  val             if  search string                         ul results   fadeOut                   h4 results-text   fadeOut             else                 ul results   fadeIn                   h4 results-text   fadeIn                  this  data  timer   setTimeout search  100                         and the html   lt input id  search  style  height 36px  font-size 13px   type  text  class  form-control  placeholder  Enter Mobile Number or Email   value   lt  php echo stripcslashes   REQUEST  string       gt   name  string    gt           lt h4 id  results-text  gt Showing results for   lt b id  search-string  gt Array lt  b gt  lt  h4 gt           lt ul id  results  gt  lt  ul gt

User · Answer

Seems to me like you are updating the value of the text field in javascript  onchange event will be triggered only when you key-in data and tab out of the text field    One workaround is to trigger the textbox change event when modifying the textbox value from the script  See below       kat   change function         alert  Hello              lt tab cell gt    click  function             kat          val   this  text      updating the value of the textbox         change                trigger change event

User · Answer

This technique is working for me       myInputFieldId   bind  input  function                    alert  Hello              Note that according to this JQuery doc   on  is recommended rather than bind in newer versions

User · Answer

That is working for me  Could be a browser issue as mentioned  or maybe jQuery isn t registered properly  or perhaps the real issue is more complicated  that you made a simpler version to ask this   PS - did have to click out of the text box to make it fire   http   jsfiddle net toddhd Qt7fH

[jquery] jQuery - on change input text

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