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SQL order string as number
... | 0 /* the string does not contain a number, so the result is 0 */
'123miles' | 123
'$123' | 0 /* the left side of the string does not start with a number */
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Python Linked List
...inked list in python? In scheme, a linked list is defined simply by '(1 2 3 4 5) . Python's lists, [1, 2, 3, 4, 5] , and tuples, (1, 2, 3, 4, 5) , are not, in fact, linked lists, and linked lists have some nice properties such as constant-time concatenation, and being able to reference separate p...
Apache Spark: The number of cores vs. the number of executors
...ry-mb and
yarn.nodemanager.resource.cpu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allocating 100%
of the resources to YARN containers because the node needs some
resources to run the OS and Hadoop daemons. In this case, we leave a
gigabyte and a co...
How to redirect and append both stdout and stderr to a file with Bash?
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Fritz
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answered May 18 '09 at 4:23
Alex MartelliAlex Martelli
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How to hide element using Twitter Bootstrap and show it using jQuery?
...").toggleClass('d-none');
(thanks to the comment by Fangming)
Bootstrap 3.x
First, don't use .hide! Use .hidden. As others have said, .hide is deprecated,
.hide is available, but it does not always affect screen readers and is deprecated as of v3.0.1
Second, use jQuery's .toggleClass(), .a...
Predicate Delegates in C#
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324
A predicate is a function that returns true or false. A predicate delegate is a reference to ...
What is the combinatory logic equivalent of intuitionistic type theory?
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answered Aug 3 '12 at 11:43
pigworkerpigworker
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How do I loop through a list by twos? [duplicate]
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392
You can use for in range with a step size of 2:
Python 2
for i in xrange(0,10,2):
print(i)...
Running junit tests in parallel in a Maven build?
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edited Jan 31 '14 at 13:05
kryger
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Difference between two lists
...equal" if they refer to the exact same object), you can just use:
var list3 = list1.Except(list2).ToList();
If you need to express a custom idea of equality, e.g. by ID, you'll need to implement IEqualityComparer<T>. For example:
public class IdComparer : IEqualityComparer<CustomObject&...