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How to store a command in a variable in a shell script?
I would like to store a command to use at a later period in a variable (not the output of the command, but the command itself)
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isset() and empty() - what to use
Could you help me to improve my coding style?:) In some tasks I need to check - is variable empty or contains something. To solve this task, I usually do the following.
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Random data in Unit Tests?
I have a coworker who writes unit tests for objects which fill their fields with random data. His reason is that it gives a wider range of testing, since it will test a lot of different values, whereas a normal test only uses a single static value.
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Is an HTTPS query string secure?
...ensitive data is a bad idea for several reasons:
Mostly HTTP referrer leakage (an external image in the target page might leak the password[1])
Password will be stored in server logs (which is obviously bad)
History caches in browsers
Therefore, even though Querystring is secured it's not recom...
How to configure postgresql for the first time?
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The other answers were not completely satisfying to me. Here's what worked for postgresql-9.1 on Xubuntu 12.04.1 LTS.
Connect to the default database with user postgres:
sudo -u postgres psql template1
Set the password for user postgres, then exit psql (Ctrl-D):
ALTER USER postgres wi...
Use of .apply() with 'new' operator. Is this possible?
... or even
// return new (Cls.bind.apply(Cls, arguments));
// if you know that Cls.bind has not been overwritten
}
It can be used as follows:
var s = newCall(Something, a, b, c);
or even directly:
var s = new (Function.prototype.bind.call(Something, null, a, b, c));
var s = new (Function.pr...
Procedure expects parameter which was not supplied
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I would check my application code and see what value you are setting @template to. I suspect it is null and therein lies the problem.
share
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Add UIPickerView & a Button in Action sheet - How?
...ad to serious invalid context errors in iOS 7. I just spent a few hours working through this problem and ultimately decided to take a different approach. I replaced the call to show the action sheet with a modal view controller containing a simple tableview.
There are many ways to accomplish this....
Email validation using jQuery
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Sam Leach
11.8k88 gold badges3838 silver badges7070 bronze badges
answered Mar 24 '10 at 11:00
FabianFabian
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Datatable vs Dataset
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It really depends on the sort of data you're bringing back. Since a DataSet is (in effect) just a collection of DataTable objects, you can return multiple distinct sets of data into a single, and therefore more manageable, object.
Performance-wise, you're more likely to get ine...