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Is there a performance difference between a for loop and a for-each loop?
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Yes, but that counter is now visible outside of the loop. Sure, it's a simple fix but so is for-each!
– Indolering
Nov 4 '12 at 5:19
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How do you increase the max number of concurrent connections in Apache?
...2 process can service only 50 concurrent connections/clients i.e. 25x2=50. Now if more concurrent users comes, then another child process will start, that can service another 25 users. But how many child processes can be started is controlled by ServerLimit parameter, this means that in the configur...
Static Initialization Blocks
...ould be executed once per constructed instance rather than once in total.
Now in this particular case, you could use a static method instead:
public class Foo {
private static final int widgets = getWidgets();
static int getWidgets() {
int first = Widgets.getFirstCount();
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How can I install MacVim on OS X?
...tall vim && brew install macvim
Step 4. Run brew link macvim
You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade every once in a while to upgrade them.
This includes the installation of the CLI mvim and the mac application (which bot...
How can I get browser to prompt to save password?
... (I've tested this in Chrome 27 and Firefox 21).
There are two things to know:
Trigger 'Save password', and
Restore the saved username/password
1. Trigger 'Save password':
For Firefox 21, 'Save password' is triggered when it detects that there is a form containing input text field and input ...
Why should I avoid using Properties in C#?
...to read than the equivalent method calls. I agree that developers need to know that properties are basically methods in disguise - but I think that educating developers about that is better than making code harder to read using methods. (In particular, having seen Java code with several getters and ...
SecurityException: Permission denied (missing INTERNET permission?)
this error is really really really strange and I don't know how to reproduce it and how to fix it because I made a lot of searches but nothing was useful.
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WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
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The Put Online option is now unavailable. To enable it, Right click on the Wamp Icon > Wamp settings > Check on the Menu item: Online/Offline, when you now left click on the icon, the 'Put Online' option will be available
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Should we pass a shared_ptr by reference or by value?
...er and prettier. Seriously. Value* is short and readable, but it's bad, so now my code is full of const shared_ptr<Value>& and it's significantly less readable and just... less tidy. What used to be void Function(Value* v1, Value* v2, Value* v3) is now void Function(const shared_ptr<Val...
module.exports vs exports in Node.js
... want to export a constructor function then there is something you should know about using module.exports or exports;(Remember again that module.exports will be returned when you require something, not export).
module.exports = function Something() {
console.log('bla bla');
}
Now typeof retur...