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Ways to implement data versioning in MongoDB
...DB is designed for exactly this type of change (add new property / push to array).
– Gates VP
Nov 17 '10 at 5:59
2
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Get all column names of a DataTable into string array using (LINQ/Predicate)
... .Select(x => x.ColumnName)
.ToArray();
or in LINQ Query syntax:
string[] columnNames = (from dc in dt.Columns.Cast<DataColumn>()
select dc.ColumnName).ToArray();
Cast is required, because Columns is of type DataColum...
Calling a function when ng-repeat has finished
...tered}" >
The ngRepeatFinish filter needs to be applied directly to an Array or an Object defined in your $scope, you can apply other filters after.
How NOT to use it:
<li ng-repeat="item in (items | filter:{name:namedFiltered}) | ngRepeatFinish" >
Do not apply other filters first and the...
In c# is there a method to find the max of 3 numbers?
... MoreMath.Max(1, 2, 3) or MoreMath.Max(1, 2, 3, 4) without the overhead of array creation, but still write MoreMath.Max(1, 2, 3, 4, 5, 6) for nice readable and consistent code when you don't mind the overhead.
I personally find that more readable than the explicit array creation of the LINQ approac...
Structure padding and packing
...char c;
char gap_1[3]; /* -"-: for alignment of the whole struct in an array */
} x;
Packing, on the other hand prevents compiler from doing padding - this has to be explicitly requested - under GCC it's __attribute__((__packed__)), so the following:
struct __attribute__((__packed__)) mystruc...
Get property value from string using reflection
...y jheddings. I would like to improve it allowing referencing of aggregated arrays or collections of objects, so that propertyName could be property1.property2[X].property3:
public static object GetPropertyValue(object srcobj, string propertyName)
{
if (srcobj == null)
re...
How to Iterate over a Set/HashSet without an Iterator?
...movie : movies) {
System.out.println(movie);
}
Method 3
String[] movieArray = movies.toArray(new String[movies.size()]);
for (int i = 0; i < movieArray.length; i++) {
System.out.println(movieArray[i]);
}
Method 4
// Supported in Java 8 and above
movies.stream().forEach((movie) -> {
...
AngularJS: Is there any way to determine which fields are making a form invalid?
...id
console.log($scope.FORM_NAME.$error.required);
this will output the array of invalid fields of the form
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Seeking clarification on apparent contradictions regarding weakly typed languages
...to the "scalar" type discussed above, Perl also has two structured types: "array" and "hash". Those are very distinct from scalars, to the point where Perl variables have different sigils indicating their type ($ for scalars, @ for arrays, % for hashes)1. There are coercion rules between these typ...
Plot two histograms on single chart with matplotlib
...ogram_demo_multihist.html
EDIT [2018/03/16]: Updated to allow plotting of arrays of different sizes, as suggested by @stochastic_zeitgeist
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