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How can I dynamically create a selector at runtime with Objective-C?
.... It's mentioned explicity in the Runtime Reference that you can use it to convert a string to a selector.
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How to generate a random number between a and b in Ruby?
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http://www.rubyinside.com/ruby-1-9-3-introduction-and-changes-5428.html
Converting to array may be too expensive, and it's unnecessary.
(a..b).to_a.sample
Or
[*a..b].sample
Array#sample
Standard in Ruby 1.8.7+.
Note: was named #choice in 1.8.7 and renamed in later versions.
But anyway...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...t, 1, 0x10);
Buffer.BlockCopy(buffer2, 0, dst, 0x11, 0x20);
return Convert.ToBase64String(dst);
}
Verifying:
public static bool VerifyHashedPassword(string hashedPassword, string password)
{
byte[] buffer4;
if (hashedPassword == null)
{
return false;
}
if (pass...
Find an element in a list of tuples
...s useful for any list of tuples where the size of each tuple is 2: you can convert your list into a single dictionary.
For example,
test = [("hi", 1), ("there", 2)]
test = dict(test)
print test["hi"] # prints 1
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How can I map True/False to 1/0 in a Pandas DataFrame?
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A succinct way to convert a single column of boolean values to a column of integers 1 or 0:
df["somecolumn"] = df["somecolumn"].astype(int)
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How to write character & in android strings.xml
...e seems to work the best. The $amp; comes out of getString() without being converted. So it's a pain.
– Adam
Aug 28 '12 at 18:05
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What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...s wchar_t?
wchar_t is defined such that any locale's char encoding can be converted to a wchar_t representation where every wchar_t represents exactly one codepoint:
Type wchar_t is a distinct type whose values can represent distinct codes for all members of the largest extended character set s...
How to add one day to a date? [duplicate]
... avoid the java.util.Date class altogether. But if you must do so, you can convert between the troublesome old legacy date-time classes and the modern java.time classes. Look to new methods added to the old classes.
Instant
The Instant class, is close to being equivalent to Date, both being a mome...
Why can't I use float value as a template parameter?
... character pack template<char ...cs>, then the string literal can be converted into such a pack at compile time. Here is a demo on ideone. (Demo is C++14, but it's easy to port it back to C++11 - std::integer_sequence is the only difficulty)
– Aaron McDaid
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Select objects based on value of variable in object using jq
...h key names, e.g. FOO, BAR)?
Jq provides to_entries and from_entries to convert between objects and key-value pair arrays. That along with map around the select
These functions convert between an object and an array of key-value
pairs. If to_entries is passed an object, then for each k: v ...