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How can I combine hashes in Perl?
...h
https://metacpan.org/pod/Hash::Merge
Footnotes
1 * (aka associative-array, aka dictionary)
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How To: Best way to draw table in console app (C#)
... on some ideas here. The columns width is optimal, an it can handle object arrays with this simple API:
static void Main(string[] args)
{
IEnumerable<Tuple<int, string, string>> authors =
new[]
{
Tuple.Create(1, "Isaac", "Asimov"),
Tuple.Create(2, "Robert", "Heinle...
What is the purpose of willSet and didSet in Swift?
...
But they seem to be called on an array property when doing this: myArrayProperty.removeAtIndex(myIndex) ...Not expected.
– Andreas
Feb 8 '15 at 18:46
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What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
... Without using fetch (join term only), the result would be an array of collections, two rows, the first is a collection of Employees and the second is a collection of Departments. Using eager fetch or lazy fetch, departments will be fetched.
– Bilal BBB
...
seek() function?
... seek position is a byte index into the contents of the file similar to an array index. Its also interesting that if we open file in append mode 'a', we cannot seek to file's beginning.
– anilmwr
Apr 24 '18 at 7:06
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How do I avoid capturing self in blocks when implementing an API?
...ample, I've seen people weakify an object and then, in the block they do: [array addObject:weakObject]; If the weakObject has been released, this causes a crash. Clearly that is not preferred over a retain cycle. You have to understand whether your block actually lives long enough to warrant weakify...
What are major differences between C# and Java?
...efficiency (e.g. a List<byte> as a byte[] backing it, rather than an array of boxed bytes.)
C# doesn't have checked exceptions
Java doesn't allow the creation of user-defined value types
Java doesn't have operator and conversion overloading
Java doesn't have iterator blocks for simple implemet...
Getting exact error type in from DbValidationException
...lidation error count is shown as 1, there are actually two elements in the array with two errors.
– matrix
Aug 20 '13 at 16:14
3
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Update Git submodule to latest commit on origin
...ritten to output.
This list of relative submodule paths is captured in an array ($(...)) - finally iterate this and do git add $i to update the parent repository.
Finally, a commit with some message explaining that the parent repository was updated. This commit will be ignored by default, if nothi...
How to show line number when executing bash script
...e the function was called, try $BASH_LINENO. Note that this variable is an array.
For example:
#!/bin/bash
function log() {
echo "LINENO: ${LINENO}"
echo "BASH_LINENO: ${BASH_LINENO[*]}"
}
function foo() {
log "$@"
}
foo "$@"
See here for details of Bash variables.
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