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Which method performs better: .Any() vs .Count() > 0?
...ve used LINQ to filter it etc (Where etc), you will have an iterator-block based sequence, and so this ICollection<T> optimisation is useless.
In general with IEnumerable<T> : stick with Any() ;-p
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git cherry-pick says “…38c74d is a merge but no -m option was given”
...m option. For example, git cherry-pick -m 1 fd9f578 to use parent 1 as the base.
I can't say for sure for your particular situation, but using git merge instead of git cherry-pick is generally advisable. When you cherry-pick a merge commit, it collapses all the changes made in the parent you didn't...
Use of ~ (tilde) in R programming Language
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Finding the index of an item in a list
...k at the documentation for it:
list.index(x[, start[, end]])
Return zero-based index in the list of the first item whose value is equal to x. Raises a ValueError if there is no such item.
The optional arguments start and end are interpreted as in the slice notation and are used to limit the search...
C# Sort and OrderBy comparison
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public PersonList(IEnumerable<Person> persons)
: base(persons)
{
}
public PersonList()
{
}
public override string ToString()
{
var names = Math.Min(Count, 5);
var builder = new StringBuilder()...
How do sessions work in Express.js with Node.js?
... (like connect-redis).
Details
Express.js/Connect creates a 24-character Base64 string using utils.uid(24) and stores it in req.sessionID. This string is then used as the value in a cookie.
Client Side
Signed cookies are always used for sessions, so the cookie value will have the following forma...
Which is faster: Stack allocation or Heap allocation
...ode with Linux (Linux 3.10.7-gentoo #2 SMP Wed Sep 4 18:58:21 MDT 2013 x86_64), modifying for the HR timer, and using 100 million iterations in each loop yields this performance: stack allocation took 0.15354 seconds, heap allocation took 0.834044 seconds with -O0 set, making Linux heap allocation o...
Generate random password string with requirements in javascript
...m number, eg: 0.123456
.toString(36) // Convert to base-36 : "0.4fzyo82mvyr"
.slice(-8);// Cut off last 8 characters : "yo82mvyr"
Documentation for the Number.prototype.toString and string.prototype.slice methods.
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What is the maximum value for an int32?
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If you think the value is too hard to remember in base 10, try base 2:
1111111111111111111111111111111
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answered Jun 1 '10 at...
How can I get the behavior of GNU's readlink -f on a Mac?
...ollows additional links. This doesn't seem to work on Mac and possibly BSD based systems. What would the equivalent be?
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