jquery - How to enable button based on both checkbox and textbox content -

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i have following code :

<html> <body>  <form action=""> <input type="checkbox" id="condition" value="conditions">conditions<br> <input type="text" id="txtagree" disabled> <input type="submit" name="generate" id="generate" disabled> </form>  </body>

and wrote following method in jquery

if ($("#condition").is(":checked")) {                  $('#txtagree').prop('disabled',false);                          $('#txtagree').keyup(function () {                              if ($(this).val().length != 0) {                                   $('#generate').prop('disabled', false);                               }                              else {                                  $('#generate').prop('disabled', true);                              }                          })                      }                      $('#generate').prop('disabled', false);                  }

but button getting enabled checking checkbox itself. requirement if check box checked,textbox enabled , if textbox not empty, button should enabled.

a shorter version you:

$('#condition,#txtagree').on('change keyup', function() {   $('#txtagree').prop('disabled', !$('#condition:checked').length);   $('#generate').prop('disabled', !($('#condition:checked').length && $('#txtagree').val())); });

jsfiddle: https://jsfiddle.net/trueblueaussie/mt4uokvx/

it listens both keyup , change events on both controls, enables text input based on checkbox , button based on checkbox , edit control. in theory needs check length of text, require uncheck clear text :)


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