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Uninitialized constant ActiveSupport::Dependencies::Mutex (NameError)
...s with RubyGems 1.6.0+ and Rails < 2.3.11:
gem update --system 1.5.3
If you had previously downgraded to an even earlier version and want to update to 1.5.3, you might get the following when trying to run that:
Updating RubyGems
ERROR: While executing gem ... (RuntimeError)
No gem names ...
How to get rid of the 'undeclared selector' warning
.... For example, there's a category method that should set an error property if the NSObject instance it's called on supports it. This is the code, and the code works as intended:
...
How to get the value from the GET parameters?
...the ? character on to the end of the URL or the start of the fragment identifier (#foo), whichever comes first.
Then you can parse it with this:
function parse_query_string(query) {
var vars = query.split("&");
var query_string = {};
for (var i = 0; i < vars.length; i++) {
...
How to check if a String contains another String in a case insensitive manner in Java?
...uote(wantedStr), Pattern.CASE_INSENSITIVE).matcher(source).find();
EDIT: If s2 contains regex special characters (of which there are many) it's important to quote it first. I've corrected my answer since it is the first one people will see, but vote up Matt Quail's since he pointed this out.
...
Sort array of objects by object fields
...t($your_data, fn($a, $b) => strcmp($a->name, $b->name));
Also, if you're comparing numeric values, fn($a, $b) => $a->count - $b->count as the "compare" function should do the trick, or, if you want yet another way of doing the same thing, starting from PHP 7 you can use the Spac...
What is the difference between parseInt() and Number()?
How do parseInt() and Number() behave differently when converting strings to numbers?
10 Answers
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What .NET collection provides the fastest search
... answer to "What is the fastest searchable collection" depends on your specific data size, ordered-ness, cost-of-hashing, and search frequency.
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How do you calculate log base 2 in Java for integers?
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If you are thinking about using floating-point to help with integer arithmetics, you have to be careful.
I usually try to avoid FP calculations whenever possible.
Floating-point operations are not exact. You can never know ...
Convert Rows to columns using 'Pivot' in SQL Server
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If you are using SQL Server 2005+, then you can use the PIVOT function to transform the data from rows into columns.
It sounds like you will need to use dynamic sql if the weeks are unknown but it is easier to see the correc...
twig: IF with multiple conditions
It seem I have problem with a twig if statement.
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