大约有 40,000 项符合查询结果（耗时：0.0439秒） [XML]
Turn a simple socket into an SSL socket
... an call it a day. Having SSL in a different process won't slow you down: http://vincent.bernat.im/en/blog/2011-ssl-benchmark.html
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Ant task to run an Ant target only if a file exists?
...a little more sense from a coding perspective (available with ant-contrib: http://ant-contrib.sourceforge.net/):
<target name="someTarget">
<if>
<available file="abc.txt"/>
<then>
...
</then>
<else>
...
...
How to check for null in Twig?
...
How to set default values in twig: http://twig.sensiolabs.org/doc/filters/default.html
{{ my_var | default("my_var doesn't exist") }}
Or if you don't want it to display when null:
{{ my_var | default("") }}
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In Django, how does one filter a QuerySet with dynamic field lookups?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Check if SQL Connection is Open or Closed
...then Re-opening the connection "will refresh the value of State."
See here http://msdn.microsoft.com/en-us/library/system.data.sqlclient.sqlconnection.state(v=vs.110).aspx
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Query EC2 tags from within instance
...magic endpoints you can use to get various bits of data. In this case curl http://169.254.169.254/latest/meta-data/instance-id gets your your instance ID
– Asfand Qazi
Jan 31 '19 at 11:51
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Detect iPad users using jQuery?
...
I use this:
//http://detectmobilebrowsers.com/ + tablets
(function(a) {
if(/android|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(ad|hone|od)|iris|kindle|lge |maemo|meego.+mobile|midp|mmp|netfront|opera m(ob|...
How to instantiate a File object in JavaScript?
...e this on an existing JavaScript method that takes a File to upload via XMLHttpRequest and supplying a Blob to it works fine like this:
var BlobBuilder = window.MozBlobBuilder || window.WebKitBlobBuilder;
var bb = new BlobBuilder();
var xhr = new XMLHttpRequest();
xhr.open('GET', 'http://jsfiddle....
How do I provide custom cast support for my class?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Rails detect if request was AJAX
...est.xhr?
Returns true if the “X-Requested-With” header contains “XMLHttpRequest”....
But BEWARE that
request.xhr?
returns numeric or nil values not BOOLEAN values as the docs say, in accordance with =~.
irb(main):004:0> /hay/ =~ 'haystack'
=> 0
irb(main):006:0> /stack/ =~ '...