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Can a class extend both a class and implement an Interface
...ntions do matter. Your class database seems more general then mysqli, therefore it suggests that the latter inherits from database and not the way around.
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How do I fetch lines before/after the grep result in bash?
... I'm very new to bash programming. I want a way to search in a given Text. For that I use grep function:
4 Answers
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Default implementation for Object.GetHashCode()
How does the default implementation for GetHashCode() work? And does it handle structures, classes, arrays, etc. efficiently and well enough?
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passing several arguments to FUN of lapply (and others *apply)
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An addendum: You can use ... when you're writing your own functions, too. For example, say you write a function that calls plot at some point, and you want to be able to change the plot parameters from your function call. You could include each parameter as an argument in your function, but that's ...
delete map[key] in go?
... work. This seems a poor use of resources though!
Another way is to check for existence and use the value itself:
package main
func main () {
var sessions = map[string] chan int{};
sessions["moo"] = make (chan int);
_, ok := sessions["moo"];
if ok {
delete(sessions, "moo")...
from jquery $.ajax to angular $http
... quick example and some pointers, be sure to check AngularJS documentation for more: http://docs.angularjs.org/api/ng.$http
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Rails ActionMailer - format sender and recipient name/email address
Is there a way to specify email AND name for sender and recipient info when using ActionMailer?
6 Answers
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Concurrent.futures vs Multiprocessing in Python 3
...PU-bound tasks go, that's way too under-specified to say much meaningful. For CPU-bound tasks under CPython, you need multiple processes rather than multiple threads to have any chance of getting a speedup. But how much (if any) of a speedup you get depends on the details of your hardware, your OS...
git discard all changes and pull from upstream
...an reset --hard to the common ancestor and then do a pull, which will fast-forward to the latest commit on the remote master.
To be concrete, here's a simple extension of Nevik Rehnel's original answer:
git reset --hard origin/master
git pull origin master
NOTE: using git reset --hard will disca...
Creating stored procedure and SQLite?
...atures, XML and/or Java extensions, tera- or peta-byte scalability, and so forth
Source : Appropriate Uses For SQLite
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