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When is it better to use String.Format vs string concatenation?
... several other developers) to remove a parameter, or mess up the parameter order by mistake. The compiler will not check the parameters against the format string and you end up with a runtime error (that is, if you're lucky enough not to have it in an obscure method, such as logging an error). With ...
Disabling swap files creation in vim
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You can set backupdir and directory to null in order to completely disable your swap files, but it is generally recommended to simply put them in a centralized directory. Vim takes care of making sure that there aren't name collissions or anything like that; so, this is a...
Add a prefix to all Flask routes
...prefix.
The mask argument is a `format string` formatted with, in that order:
prefix, route
'''
def newroute(route, *args, **kwargs):
'''New function to prefix the route'''
return route_function(mask.format(prefix, route), *args, **kwargs)
return newroute
Arguably, this is ...
Webrick as production server vs. Thin or Unicorn?
...rs (Apache, Nginx, etc) can handle without spinning up Ruby*, and probably orders of magnitude faster.
* for example, if you are running behind a load balancer, you could route all rewrite traffic to a server that does not have ruby installed, and let your main servers only manage the primary traff...
Understanding Spliterator, Collector and Stream in Java 8
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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View's getWidth() and getHeight() returns 0
..., etc. as stated by Romain Guy:
The UI event queue will process events in order. After
setContentView() is invoked, the event queue will contain a message
asking for a relayout, so anything you post to the queue will happen
after the layout pass
Example:
final View view=//smth;
...
view.post(new R...
How to use getJSON, sending data with post method?
...exOf("?") == -1 ? "?" : "&")+"callback=?", data, func, "json"); }
In order to use jsonp, and POST method, this function adds the "callback" GET parameter to the URL. This is the way to use it:
$.postJSON("http://example.com/json.php",{ id : 287 }, function (data) {
console.log(data.name);
...
Git commit in terminal opens VIM, but can't get back to terminal
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Simply doing the vim "save and quit" command :wq should do the trick.
In order to have Git open it in another editor, you need to change the Git core.editor setting to a command which runs the editor you want.
git config --global core.editor "command to start sublime text 2"
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What is the difference between a 'closure' and a 'lambda'?
... )
OK, now it's time to solve the other mystery: what is a closure.
In order to do that, let's talk about symbols (variables) in lambda expressions.
As I said, what the lambda abstraction does is binding a symbol in its subexpression, so that it becomes a substitutible parameter. Such a symbol ...
How to add a delay for a 2 or 3 seconds [closed]
.... As for my case, I need to sleep the thread for 0.6 seconds precisely in order to avoid an index constrain when inserting into the database.
– GunWanderer
Apr 19 '18 at 16:48
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