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How do I test if a string is empty in Objective-C?
...here is a character in it. It's just not printable following the Unicode standard.
– bmeulmeester
Jun 18 '14 at 10:40
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How do I get the last day of a month?
...well. It's a pedantic argument which way is better. I've done it both ways and both yield the same answer.
– Mark
Mar 22 '10 at 15:02
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Crontab - Run in directory
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All jobs are executed by a shell, so start that shell snippet by a command to change the directory.
cd /path/to/directory && ./bin/myapp
Concerning the use of && instead of ;: normally it doesn't make a difference, but if the cd command fails (e.g. because the directory doesn'...
How to add lines to end of file on Linux
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It depends on the last added line, not your current command. When you do the $ echo "foobar" >> file,the newline is already there. If you do $ echo -n "foobar" >> file, you won't append the newline to the end of the line, so you'll write in the same line.
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Serializing an object to JSON
...tps://github.com/douglascrockford/JSON-js/blob/master/json2.js, include it and do
var json_data = JSON.stringify(obj);
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Python - use list as function parameters
...is has already been answered perfectly, but since I just came to this page and did not understand immediately I am just going to add a simple but complete example.
def some_func(a_char, a_float, a_something):
print a_char
params = ['a', 3.4, None]
some_func(*params)
>> a
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Resolving conflicts: how to accept “their” changes automatically?
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Use
hg resolve -t internal:other --all
to accept theirs and
hg resolve -t internal:local --all
to accept yours
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Converting integer to string in Python
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There is not typecast and no type coercion in Python. You have to convert your variable in an explicit way.
To convert an object in string you use the str() function. It works with any object that has a method called __str__() defined. In fact
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Find an element in a list of tuples
...In the example of the OP, this would return (1,4) as opposed to both (1,2) and (1,4).
– BBischof
Jun 12 '16 at 0:51
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Is there a javadoc tag for documenting generic type parameters?
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Yes.
Just use the @param tag, and include angle brackets around the type parameter.
Like this:
/**
* @param <T> This describes my type parameter
*/
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