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How to properly check if std::function is empty in C++11?
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105
You're not checking for an empty lambda, but whether the std::function has a callable target st...
Display number with leading zeros
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1150
In Python 2 (and Python 3) you can do:
print "%02d" % (1,)
Basically % is like printf or spri...
Produce a random number in a range using C#
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You can try
Random r = new Random();
int rInt = r.Next(0, 100); //for ints
int range = 100;
double rDouble = r.NextDouble()* range; //for doubles
Have a look at
Random Class, Random.Next Method (Int32, Int32) and Random.NextDouble Method
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jQuery append() - return appended elements
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Jeroen
50.2k2727 gold badges161161 silver badges258258 bronze badges
answered Jan 29 '10 at 1:49
SLaksSLaks
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How to add additional fields to form before submit?
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edited Jun 6 '19 at 20:57
molasses
5566 bronze badges
answered Jul 23 '13 at 11:36
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How can I get pg_dump to authenticate properly
... peer
host all all 127.0.0.1/32 md5
This tells Postgres to use peer authentication for local users which requires the postgres username to match your current system username. The second line refers to connections using a hostname and w...
How to determine a user's IP address in node
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470
In your request object there is a property called connection, which is a net.Socket object. The ...
How to change position of Toast in Android?
...can set the gravity like this:
toast.setGravity(Gravity.TOP|Gravity.LEFT, 0, 0);
If you want to nudge the position to the right, increase the value of
the second parameter. To nudge it down, increase the value of the last
parameter.
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How to Pass Parameters to Activator.CreateInstance()
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answered Mar 16 '10 at 0:08
SLaksSLaks
770k161161 gold badges17711771 silver badges18631863 bronze badges
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How to concatenate strings with padding in sqlite
... seemingly-cheater way I've used is to start with your target string, say '0000', concatenate '0000423', then substr(result, -4, 4) for '0423'.
Update: Looks like there is no native implementation of "lpad" or "rpad" in SQLite, but you can follow along (basically what I proposed) here: http://verys...