代码编辑器：
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<meta charset="utf-8">3
<link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/>4
<script src="https://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script>5
<script>6
$(function () { 7
var defer = $.Deferred(),8
filtered = defer.then( null, function( value ) {9
return value * 3;10
});11
defer.reject( 6 );12
filtered.fail(function( value ) {13
alert( "值是 ( 3*6 = ) 18: " + value );14
});15
});16
</script>17
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