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Custom views with Storyboard
...(View Controllers) I used to separate the whole thing in smaller pieces (I call them widgets). These widgets consist basically of a MyWidget.h and a MyWidget.m file as well as a MyWidget.xib file, where the root element is a UIView and the MyWidget class is the File Owner of the UIView. In t...
Is it possible to have nested templates in Go using the standard library?
... set.
If you create a map of such template sets on your own, you have basically the same flexibility that Jinja / Django offers. The only difference is that the html/template package has no direct access to the file system, so you have to parse and compose the templates on your own.
Consider the f...
Why use HttpClient for Synchronous Connection
I am building a class library to interact with an API. I need to call the API and process the XML response. I can see the benefits of using HttpClient for Asynchronous connectivity, but what I am doing is purely synchronous, so I cannot see any significant benefit over using HttpWebRequest .
...
Create a tar.xz in one command
... specifies the filename (thanks to @A-B-B for pointing that out!). In that case, the command looks like:
tar -cJf <archive.tar.xz> <files>
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How do I print the elements of a C++ vector in GDB?
...r
This will produce an output similar to:
$1 = std::vector of length 3, capacity 4 = {10, 20, 30}
To achieve above, you need to have gdb 7 (I tested it on gdb 7.01) and some python pretty-printer. Installation process of these is described on gdb wiki.
What is more, after installing above, thi...
Can I use __init__.py to define global variables?
... this. Suppose I have a few subpackages and each with several modules. How can I access that variable from these modules?
4...
Why do you need to create a cursor when querying a sqlite database?
... akin to the programming language concept of iterator.
And:
Cursors can not only be used to fetch data from the DBMS into an
application but also to identify a row in a table to be updated or
deleted. The SQL:2003 standard defines positioned update and
positioned delete SQL statements f...
Any difference between First Class Function and High Order Function
...ctions, it means that the language treats functions as values – that you can assign a function into a variable, pass it around etc. Higher-order functions are functions that work on other functions, meaning that they take one or more functions as an argument and can also return a function.
The ...
Equivalent of varchar(max) in MySQL?
...udes a byte or two to encode the length of a given string. So you actually can't declare a varchar of the maximum row size, even if it's the only column in the table.
mysql> CREATE TABLE foo ( v VARCHAR(65534) );
ERROR 1118 (42000): Row size too large. The maximum row size for the used table typ...
Maximum Length of Command Line String
...g Microsoft Windows XP or later, the maximum length of the string that you can use at the command prompt is 8191 characters.
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