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Get parts of a NSURL in objective-c
...t:
@"%@://%@/%@",
url.scheme,
url.host,
url.pathComponents[1]];
For your example URL, what you seem to want is the protocol, the host and the first path component. (The element at index 0 in the array returned by -[NSString pathComponents] is simply "/", so you'll want the element ...
What is the purpose of XORing a register with itself? [duplicate]
...
154
Yes, it is more efficient.
The opcode is shorter than mov eax, 0, only 2 bytes, and the proce...
How to split strings across multiple lines in CMake?
...line continuation.\
")
Availability of CMake versions:
Debian Wheezy (2013): 2.8.9
Debian Wheezy-backports: 2.8.11
Debian Jessy (2015): 3.0.2
Ubuntu 14.04 (LTS): 2.8.12
Ubuntu 15.04 : 3.0.2
Mac OSX : cmake-3 available through Homebrew, Macports and Fink
Windows: cmake-3 available through Chocolat...
What is the purpose of a plus symbol before a variable?
...
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edited Apr 10 '19 at 13:32
Daniel W.
24.8k88 gold badges7070 silver badges114114 bronze badges
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App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
...metry Transport：消息队列遥测传输）
MQTT 发明于 1999 年，为物联网设计的轻量级协议，基于TCP协议实现。
MQTT 协议文档：https://mqtt.org/
虽然 App Inventor 有现成的 MQTT 扩展，但它们需要额外的 JavaScript 或外部...
JavaScript Date Object Comparison
...
130
That is because in the second case, the actual date objects are compared, and two objects are ...
What does “%” (percent) do in PowerShell?
...
146
When used in the context of a cmdlet (such as your example), it's an alias for ForEach-Object:...
how can I see what ports mongo is listening on from mongo shell?
... "test",
"--rest",
"--dbpath",
"/data/test/r1",
"--port",
"30001"
],
"parsed" : {
"dbpath" : "/data/test/r1",
"port" : 30001,
"replSet" : "test",
"rest" : true
},
"ok" : 1
}
If you have not passed specif...
海量数据相似度计算之simhash和海明距离 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...就拿最简单的两个数据使用Apache提供的 Levenshtein for 循环100w次计算这两个数据的相似度。代码结果如下：
String s1 = "你妈妈喊你回家吃饭哦，回家罗回家罗" ;
String s2 = "你妈妈叫你回家吃饭啦，回家罗回家罗" ;
long t1 = System.c...
What is the ellipsis (…) for in this method signature?
...
213
Those are Java varargs. They let you pass any number of objects of a specific type (in this cas...