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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
... loop iterating over an array of size N is "for(i=0;i<N;i++) a[i]=0;". Now, you can't express that directly with iterators - many folks wasted time trying to make < meaningful. But it is almost equally obvious to say "for(i=0;i!=N;i++)..." Mapping 0 to begin and N to end is therefore conven...
Most efficient way to create a zero filled JavaScript array?
...sional arrays and it seemed to greatly speed up my test cases. Having just now done some more testing on FF41 and Chrome45.0.2454.99 m. Yes, I guess I really needed more space to explain myself. Most of my testing was bias I will admit. But, check this out. Predefine a var and using just this line (...
django test app error - Got an error creating the test database: permission denied to create databas
... },
}
}
start MySQL shell as the root user:
mysql -u root -p
and now grant all privileges to this non-existing database in MySQL:
GRANT ALL PRIVILEGES ON test_finance.* TO 'django'@'localhost';
Now Django will start tests without any problems.
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Best way to merge two maps and sum the values of same key?
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The shortest answer I know of that uses only the standard library is
map1 ++ map2.map{ case (k,v) => k -> (v + map1.getOrElse(k,0)) }
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SQL multiple column ordering
...en performs STABLE sorting by column1. This is more clear for people that knows what stable sorting is.
– Atom
Oct 3 '16 at 13:49
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how do I make a single legend for many subplots with matplotlib?
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I know the lines which I want to put in the legend, but how do I get the lines variable to put in the argument for legend ?
– patapouf_ai
Apr 10 '17 at 12:51
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Add a prefix to all Flask routes
I have a prefix that I want to add to every route. Right now I add a constant to the route at every definition. Is there a way to do this automatically?
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How to get a json string from url?
...em.Net.WebClient()) {
var json = webClient.DownloadString(URL);
// Now parse with JSON.Net
}
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Determine if Android app is being used for the first time
...SET_APP_RUN_FIRST_TIME, "FIRST");
return App_runFirst;
}
}
Now Open Your Activity & Initialize .
private SharedPreference sharedPreferenceObj; // Declare Global
Now Call this in OnCreate section
sharedPreferenceObj=new SharedPreference(YourActivity.this)...
How do I focus on one spec in jasmine.js?
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//...
})
it('function 2', function() {
//...
}
})
Now you can run just the whole spec by this url http://localhost:8888?spec=MySpec and a the first test with http://localhost:8888?spec=MySpec+function+1
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