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Why must a lambda expression be cast when supplied as a plain Delegate parameter
... new delegate type with an appropriate signature, but that's rarely useful and you end up with less opportunity for error checking.
If you want to make it easy to call Control.Invoke with an Action the easiest thing to do is add an extension method to Control:
public static void Invoke(this Contro...
What is the most efficient string concatenation method in python?
... Guido. Although it is worth remembering also that this is an old article and it predates the existence of things like ''.join (although I guess string.joinfields is more-or-less the same)
On the strength of that, the array module may be fastest if you can shoehorn your problem into it. But ''.jo...
Why do I need to do `--set-upstream` all the time?
...t branch. Or, to push to the current branch to a branch of the same name (handy for an alias):
git push -u origin HEAD
You only need to use -u once, and that sets up the association between your branch and the one at origin in the same way as git branch --set-upstream does.
Personally, I think i...
Why does SIGPIPE exist?
From my understanding, SIGPIPE can only occur as the result of a write() , which can (and does) return -1 and set errno to EPIPE ... So why do we have the extra overhead of a signal? Every time I work with pipes I ignore SIGPIPE and have never felt any pain as a result, am I missing somethin...
use localStorage across subdomains
...on browsers that can support it (anyone but IE). The problem is site.com and www . site.com store their own separate localStorage objects. I believe www is considered a subdomain (a stupid decision if you ask me). If a user was originally on site.com and decides to type in www . site.com on ...
Node.js/Windows error: ENOENT, stat 'C:\Users\RT\AppData\Roaming\npm'
...-bit. I installed the latest Node.js 32 bit.
When I try to run the command npm install jquery , I receive the error:
7...
What do the different readystates in XMLHttpRequest mean, and how can I use them?
XMLHttpRequest has 5 readyState s, and I only use 1 of them (the last one, 4 ).
5 Answers
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When should I use perror(“…”) and fprintf(stderr, “…”)?
Reading the man pages and some code did not really help me in
understanding the difference between - or better, when I should use - perror("...") or fprintf(stderr, "...") .
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How to create a new java.io.File in memory?
...tion then, is “it’s not possible”. This answer tries to be pragmatic and tell what the user could do instead. Andreas’ answer is clearly more thorough and a better (attempt at an) answer.
– haraldK
Jan 17 at 12:11
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How to check if an element is in an array
...y? Xcode does not have any suggestions for contain , include , or has , and a quick search through the book turned up nothing. Any idea how to check for this? I know that there is a method find that returns the index number, but is there a method that returns a boolean like ruby's #include? ?
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