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LINQ, Where() vs FindAll()
... to use enumerables rather than static collections (like Type<T> and Array<T>).
– Sebastian Job Bjørnager Jensen
May 14 '14 at 12:33
...
Running single test from unittest.TestCase via command line
..."\n\n" )
run_unit_tests()
Editing the code a little, you can pass an array with all unit tests you would like to call:
...
def run_unit_tests(unit_tests_to_run):
runner = unittest.TextTestRunner()
classes = \
[
LineBalancingUnitTests,
]
runner.run( suite( classes...
Is null an Object?
...in the Java API that expose instance/object variables (there may be more): arrays with its length and the subclasses of java.awt.geom.Point2D.
– Gerold Broser
Aug 15 '17 at 0:45
...
What is the purpose of Node.js module.exports and how do you use it?
...that return a single object, and you can add properties (strings, numbers, arrays, functions, anything) to the object that's returned by setting them on exports.
Sometimes you'll want the object returned from a require() call to be a function you can call, rather than just an object with properties...
How to validate an email address in PHP
...are multiple @ signs. Better to explode('@',$email) and check that sizeof($array)==2
– Aaron Gillion
Feb 15 at 16:40
...
Bubble Sort Homework
...n, can be optimized (obviously) by decreasing the problem space of the 2nd array. But same O(n^2) complexity.
def bubble(arr):
l = len(arr)
for a in range(l):
for b in range(l-1):
if (arr[a] < arr[b]):
arr[a], arr[b] = arr[b], arr[a]
return arr...
Use of Initializers vs Constructors in Java
...ic List<String> SUITS;
static {
List<String> list = new ArrayList<String>();
list.add("Clubs");
list.add("Spades");
list.add("Hearts");
list.add("Diamonds");
SUITS = Collections.unmodifiableList(list);
}
...
}
Now this example can be done with a si...
Return all enumerables with yield return at once; without looping through
...y're implemented using iterator blocks). Try changing them to return a new array or something like that, and you'll see what I mean.
– Jon Skeet
Aug 10 '10 at 5:22
...
When would you use the Builder Pattern? [closed]
... pattern. The StringBuilder is just another implementation of a character array class (i.e. string), but it makes performance and memory management into account, because strings are immutable.
– Charles Graham
Mar 20 '09 at 6:01
...
What is [Serializable] and when should I use it?
...converting an object or a set of objects graph into a stream, it is a byte array in the case of binary serialization
Uses of Serialization
To save the state of an object into a file, database etc. and use it latter.
To send an object from one process to another (App Domain) on the same machine an...