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Easy way to print Perl array? (with a little formatting)
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You can use Data::Dump:
use Data::Dump qw(dump);
my @a = (1, [2, 3], {4 => 5});
dump(@a);
Produces:
"(1, [2, 3], { 4 => 5 })"
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How to add google chrome omnibox-search support for your site?
...rl type="text/html" method="get" template="http://www.yoursite.com/search/?query={searchTerms}"/>
</OpenSearchDescription>
The important part is the <url> item. {searchTerms} will be replaced with what the user searches for in the omnibar.
Here's a link to OpenSearch for more info...
How to commit a change with both “message” and “description” from the command line? [duplicate]
...SC. Now close the Vim editor with save changes by typing on the keyboard :wq (w - write, q - quit):
and press ENTER.
On GitHub this commit will looks like this:
As a commit editor you can use VS Code:
git config --global core.editor "code --wait"
From VS Code docs website: VS Code as Git e...
Access multiple elements of list knowing their index
I need to choose some elements from the given list, knowing their index. Let say I would like to create a new list, which contains element with index 1, 2, 5, from given list [-2, 1, 5, 3, 8, 5, 6]. What I did is:
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Detect when an image fails to load in Javascript
...y wouldn't try and load an image that isn't there.
– PHP Guru
Feb 12 at 19:29
1
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How to add and get Header values in WebApi
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On the Web API side, simply use Request object instead of creating new HttpRequestMessage
var re = Request;
var headers = re.Headers;
if (headers.Contains("Custom"))
{
string token = headers.GetValues("Custom").First();
}
r...
What is PAGEIOLATCH_SH wait type in SQL Server?
...o large scans over big tables. It almost never happens in queries that use indexes efficiently.
If your query is like this:
Select * from <table> where <col1> = <value> order by <PrimaryKey>
, check that you have a composite index on (col1, col_primary_key).
If you don't hav...
Array slices in C#
...0/.Net Core 3.0
Array slicing will be supported, along with the new types Index and Range being added.
Range Struct docs
Index Struct docs
Index i1 = 3; // number 3 from beginning
Index i2 = ^4; // number 4 from end
int[] a = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
Console.WriteLine($"{a[i1]}, {a[i2]...
Short circuit Array.forEach like calling break
...irefox 1.5 also works really well. My example use case will be to find the index in an array of ranges[a,b] where a number is between a lower boundary and upper boundary pair, test and return true when found. for..of would be the next best solution though only for newer browsers.
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How to stage only part of a new file with git?
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Whoa, all that update-index and hash-object business seems overly complicated. How about this instead:
git add -N new_file
git add -i
From git help add:
-N, --intent-to-add
Record only the fact that the path will be added later. An entry...