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LINQ equivalent of foreach for IEnumerable
...umerable<char> enumerable = new[] {'a', 'b', 'c'};
var sb = new StringBuilder();
enumerable
.ForEach(c => sb.Append("1"))
.ForEach(c => sb.Append("2"))
.ToList();
Assert.That(sb.ToString(), Is.EqualTo("121212"));
}
If you remove the ToList() in th...
What does the ??!??! operator do in C?
...essing, so there were some legit Fortran character sequences (in a literal string, IIRC) that were misinterpreted as C trigraphs, leading to some interesting bugs!
– Phil Perry
Apr 11 '14 at 18:25
...
How to convert List to List?
... @markthewizard1234 That will happen if your listofIDs is an IQueryable<string> that has not been executed. Execute it first with ToList() before you do the conversion: listofIDs.ToList().Select(int.Parse).ToList()
– Michael Hornfeck
Jun 13 '16 at 19:59
...
How to count certain elements in array?
...gt; 1}
> counts.remove('a')
Uncaught tried to remove element a of type string from Multiset, but does not exist in Multiset (count is 0 and cannot go negative)
sidenote: Though, if you still wanted the functional-programming way (or a throwaway one-liner without overriding Array.prototype), yo...
What datatype to use when storing latitude and longitude data in SQL databases? [duplicate]
...,6)
If you're not used to precision and scale parameters, here's a format string visual:
###.###### and ##.######
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Convert data.frame column format from character to factor
... the format (class) of some columns of my data.frame object ( mydf ) from charactor to factor .
6 Answers
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
... // This matches Oracle Java 7 and 8, but not Java 9 or OpenJDK.
final String name = System.getProperty("java.runtime.name");
final String ver = System.getProperty("java.version");
return name != null && name.equals("Java(TM) SE Runtime Environment")
&& ver !=...
Email validation using jQuery
...l could be written in better way. None part of domain can start with other char than [a-z0-9] (case insensitive). Also, valid e-mail (and domain) has some len limit, which is also not tested.
– tomis
Jul 5 '13 at 8:42
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How to check whether a file is empty or not?
...irst_char:
... print "file is empty" #first character is the empty string..
... else:
... my_file.seek(0) #first character wasn't empty, return to start of file.
... #use file now
...
file is empty
...
Traverse a list in reverse order in Python
...d the loop index, and don't want to traverse the entire list twice, or use extra memory, I'd write a generator.
def reverse_enum(L):
for index in reversed(xrange(len(L))):
yield index, L[index]
L = ['foo', 'bar', 'bas']
for index, item in reverse_enum(L):
print index, item
...