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Random alpha-numeric string in JavaScript? [duplicate]
...
Do you have a busy site? Then sometimes it will generate a random number less than 0.000001. The toString() for a lower number is something like 3.4854687E-7 and your random alphanumeric string will be 4854687E-7 which is no longer alphanumeric...
Addressing localhost from a VirtualBox virtual machine [closed]
.../10.0.2.2/
You can refer to it by localhost and access other localhosted sites by adding their references to the hosts file (C:\windows\system32\drivers\etc\hosts) like the following:
10.0.2.2 localhost
10.0.2.2 subdomain.localhost
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What does it mean when an HTTP request returns status code 0?
...requests using jQuery
var xhr = $.ajax({
type: "POST",
url: "some.php",
data: "name=John&location=Boston",
success: function(msg){
alert( "Data Saved: " + msg );
}
});
//kill the request
xhr.abort()
It's worth noting that running the .abort() method on an XHR objec...
Memcached vs. Redis? [closed]
...r your leader-board. Also great for keeping track of the last time users visited and who is active in your application.
Storing values with the same score causes them to be ordered lexicographically (think alphabetically). This can be useful for things like auto-complete features.
Many of the sorted...
Deep copying an NSArray
...sion I recommend the Collections Programming Topics on the Apple Developer site.
initWithArray:CopyItems: gives a one-level deep copy
NSArray *deepCopyArray = [[NSArray alloc] initWithArray:someArray copyItems:YES];
NSCoding is the Apple recommended way to provide a deep copy
For a true deep c...
Don't reload application when orientation changes
...ebpage in a Webview) when the orientation changes.
Learned this from this site:
http://developer.android.com/guide/topics/manifest/activity-element.html
Also, this is apparently a bad practice so read the link below about Handling Runtime Changes:
http://developer.android.com/guide/topics/resourc...
Using module 'subprocess' with timeout
...nux) in the context of an Apache module (like mod_python, mod_perl, or mod_php), I've found the use of signals and alarms to be disallowed (presumably because they interfere with Apache's own IPC logic). So to achieve the goal of timing out a command I have been forced to write "parent loops" which ...
Facebook Like Button - how to disable Comment pop up?
...ps up when a user clicks the Facebook (fbml) Like button I've placed on my site. Is this possible to do? I can't find any details in the documentation.
...
Difference between \b and \B in regex
...e http://www.regular-expressions.info/wordboundaries.html for details. The site is extremely useful for many basic regex questions.
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How do I get git to default to ssh and not https for new repositories
...ing the HTTPS protocol). Unless you have administrative access to GitHub's site, I don't know of any way to change their suggested commands.
If you'd rather use the SSH protocol, simply add a remote branch like so (i.e. use this command in place of GitHub's suggested command). To modify an existing...