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Adding Core Data to existing iPhone project
... can be found in the Supporting Files group in the Project navigator. It's called 'projectname-Prefix.pch' by default.
Xcode 6+
Starting with Xcode 6, the precompiled header file is no longer included by default. This is because of the introduction of Modules, which take away the need to use preco...
How do I get the full path of the current file's directory?
...th().absolute() exists in some module located at path/to/module and you're calling the module from some script located at path/to/script then would return path/to/script instead of path/to/module
– YellowPillow
Jun 6 '18 at 12:22
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“loop:” in Java code. What is this, and why does it compile?
...o labels, url and http, a comment www.myserver.com/myfile.mp3 and a method call with a parameter that has the same name (url) as the label. Yup, this compiles (if you define the method call and the local variable elsewhere).
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How to know/change current directory in Python shell?
...t if it's about finding other modules: You can set an environment variable called PYTHONPATH, under Linux would be like
export PYTHONPATH=/path/to/my/library:$PYTHONPATH
Then, the interpreter searches also at this place for imported modules. I guess the name would be the same under Windows, but d...
Find index of last occurrence of a substring in a string
... variable name that people should avoid in python is abc; there's a module called abc in the native API.
– progyammer
May 28 '19 at 10:31
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Determine which MySQL configuration file is being used
...'mysqld' with strace, for eg strace ./mysqld.
Among all the other system calls, you will find something like:
stat64("/etc/my.cnf", 0xbfa3d7fc) = -1 ENOENT (No such file or directory)
stat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4227, ...}) = 0
open("/etc/mysql/my.cnf", O_RDON...
Underlining text in UIButton
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Thanks, I ended up calling it as follows: UIButton *btn = [UIUnderlinedButton buttonWithType:UIButtonTypeCustom];
– hb922
Mar 21 '13 at 21:11
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How to split a string into an array of characters in Python?
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list constructor is a elegant feature which automatically converts string to character array. Since, String is a homogenous sequence of unicode characters its so cool to be working with Python and creator Guido has made it the better. Loving python for its wonderful capabiliti...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...示values数据是否是有符号的数值（假表示无符号）serviceUuid - 服务UUID，通俗来讲它就是硬件的唯一身份IDcharacteristicUuid - 特性UUID，通俗来讲它是硬件中某一功能的唯一身份ID
一个硬件UUID示例如下：UUID分为标准UUID和厂商自定义...
Getting the last argument passed to a shell script
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The BASH_ARGV has the arguments when bash was called (or to a function) not the present list of positional arguments.
– Isaac
Sep 20 '18 at 21:55
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