Know what items that a user have checked

README.md

@@ -50,6 +50,8 @@ Call the `checkAll()` function on your "check all" checkbox to initialize the pl
 <script>
   $(document).ready(function() {
     $('#check-all').checkAll();
+    //here you can get what you've checked  id,id,id,...
+    var ids = $('#check-all').data('plugin_checkAll').values();
   });
 </script>
 ```

jquery-check-all.js

@@ -1,53 +1,61 @@
 ;(function ($, window, document) {
-  var pluginName = 'checkAll';
-
-  var defaults = {
-    container: document,
-    childCheckboxes: 'input[type=checkbox]',
-    showIndeterminate: false
-  };
-
-  function checkAll(element, options) {
-    this.$el = $(element);
-    this.options = $.extend({}, defaults, this.$el.data(), options) ;
-    this.init();
-  }
-
-  checkAll.prototype.init = function() {
-    this._checkChildren();
-
-    var plugin = this;
-
-    this.$el.on('change', function(e) {
-      var $children = $(plugin.options.childCheckboxes, plugin.options.container).not(plugin.$el);
-      $children.prop('checked', $(this).prop('checked'));
-    });
-
-    $(this.options.container).on('change', plugin.options.childCheckboxes, function(e) {
-      plugin._checkChildren();
-    });
-  };
-
-  // prevent multiple instantiations
-  $.fn[pluginName] = function (options) {
-    return this.each(function() {
-      if (!$.data(this, 'plugin_' + pluginName)) {
-        $.data(this, 'plugin_' + pluginName,
-          new checkAll(this, options));
-      }
-    });
-  }
-
-  checkAll.prototype._checkChildren = function() {
-    var totalCount = $(this.options.childCheckboxes, this.options.container).not(this.$el).length;
-    var checkedCount = $(this.options.childCheckboxes,this.options.container)
-      .filter(':checked').not(this.$el).length;
-
-    var indeterminate = this.options.showIndeterminate &&
-      checkedCount > 0 && checkedCount < totalCount;
-
-    this.$el.prop('indeterminate', indeterminate);
-    this.$el.prop('checked', checkedCount === totalCount && totalCount !== 0);
-  }
+    var pluginName = 'checkAll';
+
+    var defaults = {
+        container: document,
+        childCheckboxes: 'input[type=checkbox]',
+        showIndeterminate: false
+    };
+
+    function CheckAll(element, options) {
+        this.$el = $(element);
+        this.options = $.extend({}, defaults, this.$el.data(), options) ;
+        this.init();
+    }
+
+    CheckAll.prototype.init = function() {
+        this._checkChildren();
+
+        var plugin = this;
+
+        this.$el.on('change', function(e) {
+            var $children = $(plugin.options.childCheckboxes, plugin.options.container).not(plugin.$el);
+            $children.prop('checked', $(this).prop('checked'));
+        });
+
+        $(this.options.container).on('change', plugin.options.childCheckboxes, function(e) {
+            plugin._checkChildren();
+        });
+    };
+
+    // prevent multiple instantiations
+    $.fn[pluginName] = function (options) {
+        return this.each(function() {
+            if (!$.data(this, 'plugin_' + pluginName)) {
+                $.data(this, 'plugin_' + pluginName,
+                    new CheckAll(this, options));
+            }
+        });
+    };
+
+    CheckAll.prototype._checkChildren = function() {
+        var totalCount = $(this.options.childCheckboxes, this.options.container).not(this.$el).length;
+        var checkedCount = $(this.options.childCheckboxes,this.options.container)
+            .filter(':checked').not(this.$el).length;
+
+        var indeterminate = this.options.showIndeterminate &&
+            checkedCount > 0 && checkedCount < totalCount;
+
+        this.$el.prop('indeterminate', indeterminate);
+        this.$el.prop('checked', checkedCount === totalCount && totalCount !== 0);
+    };
+
+    CheckAll.prototype.values = function () {
+        var ids = '';
+        $(this.options.childCheckboxes, this.options.container).filter(':checked').not(this.$el).each(function (i, v) {
+            ids += $(v).val() + ',';
+        });
+        return ids.slice(0, -1);
+    };
 
 })(jQuery, window, document);