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How to check if an NSDictionary or NSMutableDictionary contains a key?
...
And what if the key does exist, but it's corresponding value is nil?
– Fyodor Soikin
May 6 '10 at 21:30
2...
Extract substring using regexp in plain bash
I'm trying to extract the time from a string using bash, and I'm having a hard time figuring it out.
4 Answers
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What does “yield break;” do in C#?
...t after the loop has completed all its cycles, the last line gets executed and you will see the message in your console app.
Or like this with yield break:
int i = 0;
while (true)
{
if (i < 5)
{
yield return i;
}
else
{
// note that i++ will not be executed a...
What is the purpose of global.asax in asp.net
How can we use global.asax in asp.net? And what is that?
6 Answers
6
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Pandas groupby: How to get a union of strings
...065 This
1 2 0.301084 is
2 3 0.463468 a
3 4 0.643961 random
4 1 0.866521 string
5 2 0.120737 !
In [6]: df.dtypes
Out[6]:
A int64
B float64
C object
dtype: object
When you apply your own function, there is not automatic exclusions of non-numeric columns...
LINQ - Left Join, Group By, and Count
...;t.ChildID != null didn't work for me. The result was always a null object and Resharper complained that the expression was always true. So I used (t => t != null) and that worked for me.
– Joe
Dec 2 '10 at 1:35
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How does one use rescue in Ruby without the begin and end block
I know of the standard technique of having a begin rescue end
5 Answers
5
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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...zero is important, it's because
permissions are set as an octal integer, and Python automagically
treats any integer with a leading zero as octal. So os.chmod("file",
484) (in decimal) would give the same result.
What you are doing is passing 664 which in octal is 1230
In your case you woul...
Error: Cannot pull with rebase: You have unstaged changes
...if you wanted to keep them. After pulling, you would then do git stash pop and your changes would be reapplied.
git status also has how to get rid of changes depending on if the file is staged for commit or not.
share
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Get the length of a String
...ke this: func countElements<T>(x: T) -> T.IndexType.DistanceType and the return type doesn't accept the + operation.
– MarkAurelius
Jul 6 '14 at 6:21
291
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