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Convenient C++ struct initialisation
...t;iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "world!"
};
std::cout << hw.hello << hw.world << std::endl;
return 0;
}...
'AND' vs '&&' as operator
...r. For instance,
$predA && $predB ? "foo" : "bar"
will return a string whereas
$predA and $predB ? "foo" : "bar"
will return a boolean.
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...
Equivalent of String.format in jQuery
... JavaScript equivalents in MicrosoftAjax of the popular .net methods, e.g. String.format(), String.startsWith(), etc. Are there equivalents to them in jQuery?
...
How do I dynamically assign properties to an object in TypeScript?
...n interface could be defined as follows.
interface LooseObject {
[key: string]: any
}
var obj: LooseObject = {};
OR to make it compact:
var obj: {[k: string]: any} = {};
LooseObject can accept fields with any string as key and any type as value.
obj.prop = "value";
obj.prop2 = 88;
The real e...
How to read/process command line arguments?
...tional
arguments. The optparse module
requires you to write your own usage
string, and has no way to display
help for positional arguments.
argparse supports action that
consume a variable number of
command-line args, while optparse
requires that the exact number of
arguments (e.g. 1, 2, or 3) be kn...
How can two strings be concatenated?
...osters pointed out, paste can do two things:
concatenate values into one "string", e.g.
> paste("Hello", "world", sep=" ")
[1] "Hello world"
where the argument sep specifies the character(s) to be used between the arguments to concatenate,
or collapse character vectors
> x <- c("Hello"...
What is __stdcall?
...s, but pinvoke.net gives this signature: "static extern int wsprintf([Out] StringBuilder lpOut, string lpFmt, ...);"
– Michael Burr
Nov 21 '08 at 4:54
...
Case insensitive 'in'
...pper() for name in USERNAMES) would create only a generator and one needed string at a time - massive memory savings if you're doing this operation a lot. (even more savings, if you simply create a list of lowercase usernames that you reuse for checking every time)
– viraptor
...
How do you embed binary data in XML?
...
If you're using .NET, you can convert a binary file directly to a base64 string and stick it inside an XML element.
string base64 = Convert.ToBase64String(File.ReadAllBytes(fileName));
Or, there is a method built right into the XmlWriter object. In my particular case, I had to include Microsoft...
To draw an Underline below the TextView in Android
...
There are three ways of underling the text in TextView.
SpannableString
setPaintFlags(); of TextView
Html.fromHtml();
Let me explain you all approaches :
1st Approach
For underling the text in TextView you have to use SpannableString
String udata="Underlined Text";
SpannableString con...