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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...下的心跳间隔都为4分45秒，心跳5次后，主动断开连接再重连。
在支持GCM的设备上，主要靠GCM来激活WhatsApp，WhatsApp启动后，会建立一个与服务器的长连接，直接通过此长连接发送Push消息，这个长连接10分钟无消息就会主动断掉...
Can you do this HTML layout without using tables?
...ed with the baseline of the logo anymore.
– Jean-François Beauchamp
Dec 12 '11 at 16:35
1
I thin...
What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
...n each grant type and when to choose each one.
– François POYER
Nov 28 '16 at 14:04
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Why is using onClick() in HTML a bad practice?
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@François Wahl: the main disadvantage is discoverability: looking at the HTML does not tell you which callbacks are attached to it, not even whther there are any.
– Michael Borgwardt
Nov 28 ...
Can I add jars to maven 2 build classpath without installing them?
Maven2 is driving me crazy during the experimentation / quick and dirty mock-up phase of development.
24 Answers
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How to access a preexisting collection with Mongoose?
...{ console.log(err, data, data.length);});
– Kaan Erkoç
May 1 '17 at 9:40
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How to return result of a SELECT inside a function in PostgreSQL?
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@RenatoDinhaniConceição Cool! I added a version that may or may not answer an additional question that you haven't actually asked. ;)
– Erwin Brandstetter
Oct 30 '11 at 16:52
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What does -save-dev mean in npm install grunt --save-dev
...ted May 2 '19 at 17:24
Jean-François Fabre♦
122k1111 gold badges9797 silver badges156156 bronze badges
answered Jan 30 '15 at 12:29
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)
...jp/cgi-bin/scat.rb/ruby/ruby-talk/380637
– Matt Briançon
Aug 16 '11 at 16:17
4
Correct explanati...
App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...尔：表示这是否是保留消息。
DupFlag 布尔：表示是否是重复传递。
MQTT 消息的消息内容是字节字段。这些字节字段以通过 Payload 参数编码的字符串形式提供。编码过程在二进制数据部分中描述。但是，大多数消息都是“UTF-8”...