Query classnames of checked items as array?

This question already has an answer here:

jQuery to loop through elements with the same class 14 answers

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You need to iterate all the :checked checkboxes, here you can use .map()

var clss=$("[class*='observedType']:checked").map(function(){
   return $(this).attr('class')
}).get();

Updated Fiddle

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I would recommend you to use custom data-* prefix custom attribute to store the arbitrary data.

<input type="checkbox" id="cb_31" class="observedType" data-type="observedType1">

Which can be retrieved using .data() method

var clss = $(".observedType:checked").map(function() {
  return $(this).data('type')
}).get();

With Custom attribute Fiddle

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您可以在javascript中执行以下操作：

var myInputs = document.getElementsByTagName('input');
var myCheckedInputs = Array.from(myInputs).filter(function(input) {
  return input.checked;
});

链接地址: http://www.djcxy.com/p/83506.html

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