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Backbone.js: get current route
...y.fragment,
// Get current object of routes and convert to array-pairs
routes = _.pairs(Router.routes);
// Loop through array pairs and return
// array on first truthful match.
var matched = _.find(routes, function(handler) {
...
Why does .NET foreach loop throw NullRefException when collection is null?
...y need to do something like this, try the null coalescing operator:
int[] array = null;
foreach (int i in array ?? Enumerable.Empty<int>())
{
System.Console.WriteLine(string.Format("{0}", i));
}
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Deleting lines from one file which are in another file
...
For exclude files that aren't too huge, you can use AWK's associative arrays.
awk 'NR == FNR { list[tolower($0)]=1; next } { if (! list[tolower($0)]) print }' exclude-these.txt from-this.txt
The output will be in the same order as the "from-this.txt" file. The tolower() function makes it ca...
Properties vs Methods
...is static but returns a value that can be changed.
The member returns an array. Properties that return arrays can be
very misleading. Usually it is
necessary to return a copy of the
internal array so that the user cannot
change internal state. This, coupled
with the fact that a user can ...
Convert an enum to List
...thod that does only this for only one type of enum, and also converts that array to a List, you can write something like this:
public List<string> GetDataSourceTypes()
{
return Enum.GetNames(typeof(DataSourceTypes)).ToList();
}
You will need Using System.Linq; at the top of your class t...
How to get the name of a class without the package?
...n empty string if the underlying class is anonymous.
The simple name of an array is the simple name of the component type with "[]" appended. In particular the simple name of an array whose component type is anonymous is "[]".
It is actually stripping the package information from the name, but this...
Structure padding and packing
...char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruc...
D Programming Language in the real world? [closed]
...multi-page template error messages when you screw up just to use resizable arrays.
Unlike Java and other bondage-and-discipline languages, D assumes that sometimes pointers, unsafe casts, manual memory management, etc. are a necessary evil, and assumes you're smart enough to handle real templates...
Is inject the same thing as reduce in ruby?
...he same thing? Why does Ruby have so many aliases (such as map/collect for arrays)? Thanks a lot.
2 Answers
...
What is an intuitive explanation of the Expectation Maximization technique? [closed]
...s) = 0.80 and pB(heads)=0.45
# represent the experiments
head_counts = np.array([5,9,8,4,7])
tail_counts = 10-head_counts
experiments = zip(head_counts,tail_counts)
# initialise the pA(heads) and pB(heads)
pA_heads = np.zeros(100); pA_heads[0] = 0.60
pB_heads = np.zeros(100); pB_heads[0] = 0.50
#...