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<head>
<meta charset="utf-8">
<script
src="https://code.jquery.com/jquery-3.3.1.min.js"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<style>
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
</style>
</head>
<body>
<br/>
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="button-group">
<button type="button" class="btn btn-danger btn-lg dropdown-toggle5" data-toggle="dropdown" style="width :150px; border-color: #d43f3a; border-width: 1px;">Zoom <span class="glyphicon glyphicon-cog"></span> <span class="caret"></span></button>
<ul class="dropdown-menu" style="width =200px border-color: #d43f3a; border-width: 3px;">
<li ><a href="#" class="small" data-value="option1" tabIndex="-1">
<input type="checkbox"/> Option 1889</a></li>
<li><a href="#" class="small" data-value="option2" tabIndex="-1"><input type="checkbox"/> Option 2</a></li>
<li><a href="#" class="small" data-value="option3" tabIndex="-1"><input type="checkbox"/> Option 3</a></li>
<li><a href="#" class="small" data-value="option4" tabIndex="-1"><input type="checkbox"/> Option 4</a></li>
<li><a href="#" class="small" data-value="option5" tabIndex="-1"><input type="checkbox"/> Option 5</a></li>
<li><a href="#" class="small" data-value="option6" tabIndex="-1"><input type="checkbox"/> Option 6</a></li>
</ul>
</div>
</div>
</div>
</div>
<script>
// Feel free to change or delete any of the code you see in this editor!
var options = [];
$('.dropdown-menu a' ).on( 'click', function( event ) {
var $target = $( event.currentTarget ),
val = $target.attr( 'data-value' ),
$inp = $target.find( 'input' ),
idx;
if ( ( idx = options.indexOf( val ) ) > -1 ) {
options.splice( idx, 1 );
setTimeout( function() { $inp.prop( 'checked', false ) }, 0);
} else {
options.push( val );
setTimeout( function() { $inp.prop( 'checked', true ) }, 0);
}
$( event.target ).blur();
console.log( options );
return false;
});
</script>
</body>
https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js