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Can you supply arguments to the map(&:method) syntax in Ruby?
...e a simple patch on Symbol like this:
class Symbol
def with(*args, &block)
->(caller, *rest) { caller.send(self, *rest, *args, &block) }
end
end
Which will enable you to do not only this:
a = [1,3,5,7,9]
a.map(&:+.with(2))
# => [3, 5, 7, 9, 11]
But also a lot of othe...
Is Task.Result the same as .GetAwaiter.GetResult()?
...ome advanced situations where you want behavior similar to the synchronous blocking employed by Task.Wait, but where you want the original exception propagated unwrapped rather than it being encased in an AggregateException. To achieve that, you can target the Task’s awaiter directly. When you w...
What is the difference between synchronous and asynchronous programming (in node.js)
...
The difference is that in the first example, the program will block in the first line. The next line (console.log) will have to wait.
In the second example, the console.log will be executed WHILE the query is being processed. That is, the query will be processed in the background, whil...
PhpStorm text size
Is it possible to define a shortcut to increase/decrease size of code in PhpStorm, like what you can do in Notepad++ with CTRL + Mouse Wheel ?
...
Find all storage devices attached to a Linux machine [closed]
...
/proc/partitions will list all the block devices and partitions that the system recognizes. You can then try using file -s <device> to determine what kind of filesystem is present on the partition, if any.
...
Why use AJAX when WebSockets is available?
...is use simplifies the code base and prevents the Websocket connection from blocking (especially on medium sized data uploads).
There are a number of compelling reasons to prefer AJAX for REST API calls and data uploads:
The AJAX API was practically designed for REST API calls and it's a great fit...
Why are margin/padding percentages in CSS always calculated against width?
... @sanjaypoyzer I'd guess in the simplest case that browsers calculate block widths from the outside in (root to tips), then flow content into those blocks to determine their heights (tips to root).
– sam
Oct 10 '13 at 1:47
...
Python time measure function
...ode'):
mike = Person()
mike.think()
And the code within the with block will be timed.
Conclusion
Using the first method, you can eaily comment out the decorator to get the normal code. However, it can only time a function. If you have some part of code that you don't what to make it a fu...
Completion handler for UINavigationController “pushViewController:animated”?
...nse to encapsulate the code within CATransaction and thus set a completion block.
Swift:
For swift I suggest creating an extension as such
extension UINavigationController {
public func pushViewController(viewController: UIViewController,
animated: Bool,
...
How to concatenate columns in a Postgres SELECT?
...
PHP's Laravel framework,
I am using search first_name, last_name Fields consider like Full Name Search
Using || symbol Or concat_ws(), concat() methods
$names = str_replace(" ", "", $searchKey); ...