Checkbox value is always 'on'

This question already has an answer here:

How to check whether a checkbox is checked in jQuery? 56 answers

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Use .is(':checked') instead: Working jsFiddle

var eu_want_team = $('#eu_want_team').is(':checked');
alert(eu_want_team);

or as @Itay said in comments you can use jQuery's .prop() to get the checked property value:

alert($("#eu_want_team").prop("checked"));

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<label class="checkbox">
    <input id="eu_want_team" name="eu_want_team" type="checkbox" value="somevalue">
</label>

<script>
   var ele = document.getElementById("eu_want_team");
   if(ele.checked)
   alert(ele.value)

</script>

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Have a quick look at this answer for checking if a checkbox is checked.

How to check whether a checkbox is checked in jQuery?

But basically you want to do something like below to check its value:

if ($("#element").is(":checked")) {
  alert("I'm checked");
}

链接地址: http://www.djcxy.com/p/9512.html

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