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How to redirect output with subprocess in Python?
...me ask you then: What's the point of the subprocess library if os.system already gets the job done? I get the feeling I should've been using subprocess instead since it's a library dedicated to this task, although since I'm doing this just for myself I'll be fine using os.system this time.
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Why doesn't Java allow overriding of static methods?
...osts $5." "Okay, I know the price, but I was asking about the color." "I already told you the price!" etc.)
– Jay
Feb 8 '10 at 20:29
6
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How does HTTP file upload work?
... --, just like in the end of the last boundary string. The example above already includes this, but it can be easy to miss. See comment by @Andreas below.
Instead of URL encoding the form parameters, the form parameters (including the file data) are sent as sections in a multipart document in the b...
Why do we always prefer using parameters in SQL statements?
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command.Parameters.Add(salaryParam);
var results = command.ExecuteReader();
}
VB.NET
Dim sql As String = "SELECT empSalary from employee where salary = @salary"
Using connection As New SqlConnection("connectionString")
Using command As New SqlCommand(sql, connection)
Dim sala...
Should you ever use protected member variables?
...h-accessors:
lazily create a value on the fly when the property is being read. If you add a protected getter method, you can lazily create the value and pass it back.
know when the property been modified or deleted. This can introduce bugs when the superclass makes assumptions about the state of t...
No ConcurrentList in .Net 4.0?
...oing to get a full implementation of IList<T> that is lockless and thread-safe. In particular, random insertions and removals are not going to work, unless you also forget about O(1) random access (i.e., unless you "cheat" and just use some sort of linked list and let the indexing suck).
What...
Inner join vs Where
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I find the WHERE syntax easier to read than INNER JION - I guess its like Vegemite. Most people in the world probably find it disgusting but kids brought up eating it love it.
– ScottCher
Oct 27 '08 at 18:53
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When should I use a NoSQL database instead of a relational database? Is it okay to use both on the s
What are the advantages of using NoSQL databases? I've read a lot about them lately, but I'm still unsure why I would want to implement one, and under what circumstances I would want to use one.
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How to get relative path from absolute path
...athTo(...) which I find easier to understand than an int where you need to read the documentation on what the int means.
– Daniel Rose
Jun 22 '10 at 6:32
4
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for each loop in Objective-C for accessing NSMutable dictionary
...collections which lets you enumerate keys instead of values. I suggest you read about fast enumeration in the Collections Programming Topic.
Oh, I should add however that you should NEVER modify a collection while enumerating through it.
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