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How to check if an element does NOT have a specific class?
... of DOM elements just as easy as we can on single objects. Your answer provides just that solution. +1
– Stijn de Witt
Sep 28 '12 at 9:27
1
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Python != operation vs “is not”
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== is an equality test. It checks whether the right hand side and the left hand side are equal objects (according to their __eq__ or __cmp__ methods.)
is is an identity test. It checks whether the right hand side and the left hand side are the very same object. No methodcalls are d...
Getting all selected checkboxes in an array
...ks them. For the correct answer, in VanillaJS, please see the answer of zahid ullah below.
– jmknoll
Aug 31 '16 at 16:13
2
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Python + Django page redirect
...how to pass the value of parameters to lambda, i.e. url(r'^(?P<location_id>\d+)/$', lambda x: HttpResponseRedirect(reverse('dailyreport_location', args=['%(location_id)', ]))) does not work
– radtek
Jun 12 '14 at 16:51
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How can I use jQuery to make an input readonly?
...ngeable) but also cannot it be submitted.
jQuery approach (1):
$("#inputID").prop("readonly", true);
$("#inputID").prop("disabled", true);
jQuery approach (2):
$("#inputID").attr("readonly","readonly");
$("#inputID").attr("disabled", "disabled");
JavaScript approach:
document.getElementById...
How to set a border for an HTML div tag
...ing explicit about all the border properties. For example:
border:1px solid black;
See Border shorthand property. Although the other bits are optional some browsers don't set the width or colour to a default you'd expect. In your case I'd bet that it's the width that's zero unless specified.
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How to play a notification sound on websites?
...+ filename + '.ogg" type="audio/ogg">';
var embedSource = '<embed hidden="true" autostart="true" loop="false" src="' + filename +'.mp3">';
document.getElementById("sound").innerHTML='<audio autoplay="autoplay">' + mp3Source + oggSource + embedSource + '</audio>';
}
<butt...
AWS S3 copy files and folders between two buckets
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A simplified example using the aws-sdk gem:
AWS.config(:access_key_id => '...', :secret_access_key => '...')
s3 = AWS::S3.new
s3.buckets['bucket-name'].objects['source-key'].copy_to('target-key')
If you want to perform the copy between different buckets, then specify the target bucke...
CSS /JS to prevent dragging of ghost image?
...uery method: $('#myImage').attr('draggable', false);
document.getElementById('myImage').setAttribute('draggable', false);
<img id="myImage" src="http://placehold.it/150x150">
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i...
UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...中）， 在这个函数中调用 uc_api_post('user', 'synlogin', array('uid'=>$uid));之后向UC_API.'/index.php'传递了数据；这里的UC_API就是在 config.inc.php中的定义的uc_server之URL地址。
2、uc_server的index.php接受参数数据，获得model为user，action为synlogin...