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What is mattr_accessor in a Rails module?
...mattr_accessor' is the Module corollary for 'attr_accessor' (getter & setter) in a normal Ruby class .
2 Answers
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How do you set your pythonpath in an already-created virtualenv?
...ort PYTHONPATH="/the/path/you/want"
This way, the new PYTHONPATH will be set each time you use this virtualenv.
EDIT: (to answer @RamRachum's comment)
To have it restored to its original value on deactivate, you could add
export OLD_PYTHONPATH="$PYTHONPATH"
before the previously mentioned lin...
Controlling fps with requestAnimationFrame?
... when your specified FPS interval has elapsed.
The first part of the code sets some variables used to calculate elapsed time.
var stop = false;
var frameCount = 0;
var $results = $("#results");
var fps, fpsInterval, startTime, now, then, elapsed;
// initialize the timer variables and start the a...
Hide text using css
... /* shows image */
height: 100px; /* be sure to set height & width */
width: 600px;
white-space: nowrap; /* because only the first line is indented */
}
h1 a {
outline: none; /* prevents dotted line when link is active */
}
Here is another wa...
MySql - Way to update portion of a string?
...
I think this should work:
UPDATE table
SET field = REPLACE(field, 'string', 'anothervalue')
WHERE field LIKE '%string%';
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Navigation bar appear over the views with new iOS7 SDK
...electing the attributes inspector (Like the images shows).
This will also set the alignment lines like iOS 6.
Another great tool in xCode 5 is "Preview": click on the butler Button (assistant editor) and select Preview. there you can select iOS 6 and see how your storyboard design will look like o...
How to keep index when using pandas merge
...s , and keep the index from the first frame as the index on the merged dataset. However, when I do the merge, the resulting DataFrame has integer index. How can I specify that I want to keep the index from the left data frame?
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How to Iterate over a Set/HashSet without an Iterator?
How can I iterate over a Set / HashSet without the following?
8 Answers
8
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How do you clear Apache Maven's cache?
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Have you checked/changed the updatePolicy settings for your repositories in your settings.xml.
This element specifies how often updates should attempt to occur.
Maven will compare the local POM's timestamp (stored in a repository's
maven-metadata file) to the...
Locate the nginx.conf file my nginx is actually using
...en you can use the -V option to find out the configure arguments that were set to non-standard values. Among them the most interesting for you are:
--prefix=PATH set installation prefix
--sbin-path=PATH set nginx binary pathname
--conf-path=PATH ...