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Capturing Groups From a Grep RegEx
...pace. It's awkward to escape and you can't use quotes since that forces it from a regex to an ordinary string. The correct way to do it is to use a variable. Quotes can be used during the assignment making things much simpler.
– Paused until further notice.
Oct...
instantiate a class from a variable in PHP?
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This is how I do it. Note that from within classes you can use parent and self.
– Ross
Feb 10 '09 at 20:55
1
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Must Dependency Injection come at the expense of Encapsulation?
...ly we're using an OO language as the 'host', but the ideas behind IoC come from component-oriented software engineering, not OO.
Component software is all about managing dependencies - an example in common use is .NET's Assembly mechanism. Each assembly publishes the list of assemblies that it refe...
How do you run a crontab in Cygwin on Windows?
...ndows Scheduler, but others don't have an .exe extension so can't be run from DOS (it seems like).
8 Answers
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No module named _sqlite3
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I had the same problem (building python2.5 from source on Ubuntu Lucid), and import sqlite3 threw this same exception. I've installed libsqlite3-dev from the package manager, recompiled python2.5, and then the import worked.
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How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...ng gemsets:
$ rvm upgrade 1.9.2-p0 1.9.2
Are you sure you wish to upgrade from ruby-1.9.2-p0 to ruby-1.9.2-p136? (Y/n): Y
To replace with the latest stable release of 1.9.2. This avoids clutter.
Some additional helpful tips, thanks to comments (@Mauro, @James, @ACB)
$ rvm list known
# NOTE: yo...
CURL to access a page that requires a login from a different page
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My answer is a mod of some prior answers from @JoeMills and @user.
Get a cURL command to log into server:
Load login page for website and open Network pane of Developer Tools
In firefox, right click page, choose 'Inspect Element (Q)' and click on Network tab
Go...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
...tReferenceException e) {
System.out.println("Attempting to recover from StaleElementReferenceException ...");
return getStaleElemById(id);
}
}
Yes, it just keeps polling the element until it's no longer considered stale (fresh?). Doesn't really get to the root of the problem, b...
What is the difference between ng-if and ng-show/ng-hide
...on assigned to ngIf evaluates to a false value then the element is removed from the DOM, otherwise a clone of the element is reinserted into the DOM.
<!-- when $scope.myValue is truthy (element is restored) -->
<div ng-if="1"></div>
<!-- when $scope.myValue is falsy (element i...
what’s the difference between Expires and Cache-Control headers?
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Cache-Control was defined in HTTP/1.1, tells all caching mechanisms from server to client whether they may cache this object. It is measured in seconds: Cache-Control: max-age=3600.
The Expires header field gives the date/time after which the response is considered stale. The Expires value ...