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Converting String array to java.util.List
...s a list view of the array, the list is partly unmodifiable, you can't add or delete elements. But the time complexity is O(1).
If you want a modifiable a List:
List<String> strings =
new ArrayList<String>(Arrays.asList(new String[]{"one", "two", "three"}));
This will copy all ...
Get original URL referer with PHP?
I am using $_SERVER['HTTP_REFERER']; to get the referer Url. It works as expected until the user clicks another page and the referer changes to the last page.
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Enums and Constants. Which to use when?
...ing constants. How would I know when to use a constant rather than an enum or vice versa. What are some of the advantages of using enums?
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How do I use itertools.groupby()?
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IMPORTANT NOTE: You have to sort your data first.
The part I didn't get is that in the example construction
groups = []
uniquekeys = []
for k, g in groupby(data, keyfunc):
groups.append(list(g)) # Store group iterator as ...
Is it possible to use argsort in descending order?
...ay, the lowest elements become the highest elements and vice-versa. Therefore, the indices of the n highest elements are:
(-avgDists).argsort()[:n]
Another way to reason about this, as mentioned in the comments, is to observe that the big elements are coming last in the argsort. So, you can rea...
How to split long commands over multiple lines in PowerShell
...Microsoft Web Deploy\msdeploy.exe" `
-verb:sync `
-source:contentPath="c:\workspace\xxx\master\Build\_PublishedWebsites\xxx.Web" `
-dest:contentPath="c:\websites\xxx\wwwroot,computerName=192.168.1.1,username=administrator,password=xxx"
White space matters. The required format is Space`Enter.
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When to use IComparable Vs. IComparer
...ith other instances of the same type.
I tend to use IComparable<T> for times when I need to know how another instance relates to this instance. IComparer<T> is useful for sorting collections as the IComparer<T> stands outside of the comparison.
...
If Python is interpreted, what are .pyc files?
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@froadie: a language is not "interpreted" or "compiled" as such. A specific implementation can be an interpreter or a compiler (or a hybrid or a JIT compiler).
– Joachim Sauer
Jun 8 '10 at 14:41
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Why is extending native objects a bad practice?
...cript, the risk of breaking something is very high, due to how javascript works. Long years of experience have taught me that this kind of stuff causes all kinds of terrible bugs in javascript.
If you need custom behaviour, it is far better to define your own class (perhaps a subclass) instead of c...
How do you determine the size of a file in C?
...
return -1;
}
Changes:
Made the filename argument a const char.
Corrected the struct stat definition, which was missing the variable name.
Returns -1 on error instead of 0, which would be ambiguous for an empty file. off_t is a signed type so this is possible.
If you want fsize() to prin...