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Super-simple example of C# observer/observable with delegates
I recently started digging into C# but I can't by my life figure out how delegates work when implementing the observer/observable pattern in the language.
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Set active tab style with AngularJS
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One way of doing this would be by using ngClass directive and the $location service. In your template you could do:
ng-class="{active:isActive('/dashboard')}"
where isActive would be a function in a scope defined like this:
myApp.controller('MyCtrl', f...
Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli
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You can use rename utility to rename multiple files by a pattern. For example following command will prepend string MyVacation2011_ to all the files with jpg extension.
rename 's/^/MyVacation2011_/g' *.jpg
or
rename <pattern> <replacement> <file-list>
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What is the JavaScript convention for no operation?
...ight be some performance issues associated with this (as is also mentioned by others in comments or in other answers).
However, that being said, you can easily define your own noop function and, infact, many libraries and frameworks also provide noop functions. Below are some examples:
var noop = ...
How to share my Docker-Image without using the Docker-Hub?
...very command in the Dockerfile creates a layer. You can also create layers by using docker commit from the command line after making some changes (via docker run probably).
These layers are stored by default under /var/lib/docker. While you could (theoretically) cherry pick files from there and ins...
How to re-open an issue in github?
...sues if you closed them yourself
you cannot close or re-open issues opened by someone else
you cannot re-open your own issues if a repo collaborator closed them
The situation you report falls in the last case, so you cannot reopen it. You can ask in the issue thread if a repo collaborator can reop...
Filter by process/PID in Wireshark
...xperimental build that does this, as described on the mailing list, Filter by local process name
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How to filter SQL results in a has-many-through relation
...NDEX sc_club_id_idx ON student_club (club_id);
club_pkey is not required by most queries here.
Primary keys implement unique indexes automatically In PostgreSQL.
The last index is to make up for this known shortcoming of multi-column indexes on PostgreSQL:
A multicolumn B-tree index can be us...
How do iOS Push Notifications work?
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@Mugen: Device token is used by APNS to identify which device it is supposed to forward the payload sent by provider!
– D4ttatraya
Jan 6 '17 at 13:24
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How to understand nil vs. empty vs. blank in Ruby
...clear definition of the differences of nil? , blank? , and empty? in Ruby on Rails. Here's the closest I've come:
14 A...