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How to check if a file exists in Documents folder?
...rchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString* foofile = [documentsPath stringByAppendingPathComponent:@"foo.html"];
BOOL fileExists = [[NSFileManager defaultManager] fileExistsAtPath:foofile];
...
jQuery ID starts with
...Mark Kahn
76.9k2525 gold badges153153 silver badges209209 bronze badges
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getViewTypeCount and getItemViewType methods of ArrayAdapter
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308
These handle the case where you want different types of view for different rows. For instance, ...
Why does changing the sum order returns a different result?
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+500
Maybe this question is stupid, but why does simply changing the order of the elements affects the result?
It will change the poi...
How to get the current directory in a C program?
... } else {
perror("getcwd() error");
return 1;
}
return 0;
}
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How do Mockito matchers work?
...rtions such as the one below.
/* Mockito */ verify(foo).setPowerLevel(gt(9000));
/* Hamcrest */ assertThat(foo.getPowerLevel(), is(greaterThan(9000)));
Mockito matchers exist, separate from Hamcrest-style matchers, so that descriptions of matching expressions fit directly into method invocations: ...
How can I strip the whitespace from Pandas DataFrame headers?
...ethod should do what you want.
In [5]: df
Out[5]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
In [6]: df.rename(columns=lambda x: x.strip())
Out[6]:
Year Month Value
0 1 2 3
[1 rows x 3 columns]
Note: that this returns a DataFrame object and it's sho...
How do I create an array of strings in C?
... want to change the strings, then you could simply do
const char *a[2];
a[0] = "blah";
a[1] = "hmm";
When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings "blah" and "hmm".
If you do want to be ab...
Flatten an irregular list of lists
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390
Using generator functions can make your example a little easier to read and probably boost the p...
Maven Install on Mac OS X
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209
OS X prior to Mavericks (10.9) actually comes with Maven 3 built in.
If you're on OS X Lion,...