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Standardize data columns in R
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EDIT 3 (2020): Thanks to @mj_whales: the old solution is deprecated and now we need to use mutate_at.
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Displaying better error message than “No JSON object could be decoded”
...ew error message format. I don’t have time to track exact releases right now however.
– Martijn Pieters♦
Mar 14 at 0:29
1
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Mongoose query where value is not null
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the mongodb docs about it are here (now): docs.mongodb.org/manual/reference/operator/query The up-to-date doc about it, is here: mongoosejs.com/docs/api.html#query_Query-ne
– zeropaper
Jul 20 '14 at 7:52
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Auto-center map with multiple markers in Google Maps API v3
...s[i][0]);
infowindow.open(map, marker);
}
})(marker, i));
}
//now fit the map to the newly inclusive bounds
map.fitBounds(bounds);
//(optional) restore the zoom level after the map is done scaling
var listener = google.maps.event.addListener(map, "idle", function () {
map.setZoom(3...
Regular expression to match URLs in Java
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The best way to do it now is:
android.util.Patterns.WEB_URL.matcher(linkUrl).matches();
EDIT: Code of Patterns from https://github.com/android/platform_frameworks_base/blob/master/core/java/android/util/Patterns.java :
/*
* Copyright (C) 2007...
Partial Commits with Subversion
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Tortoise SVN 1.8 now supports this with it's "Restore after commit" feature. This allow you to make edits to a file, with all of the edits being undone after the commit
Per the documentation:
To commit only the parts of the file that rel...
Tree data structure in C#
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Don't know if maybe things have changed but right now the book is freely available to download as PDF from the C5 site.
– Oskar
Aug 6 '09 at 12:10
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How does the keyword “use” work in PHP and can I import classes with it?
...you have two classes with the same name, put them in different namespaces. Now consider when your auto loader is loading both classes (does by require), and you are about to use object of class. In this case, the compiler will get confused which class object to load among two. To help the compiler m...
Is APC compatible with PHP 5.4 or PHP 5.5?
...ed back any issues encountered to ensure a stable final release.
I do not know what this means for the future of APC.
APC FOR PHP 5.4+ IS STILL FLAGGED AS BETA
This means the developers do not consider it completely stable. While many people are experiencing no problems at all with the current SVN r...
Does use of final keyword in Java improve the performance?
...the VM detecting results are just being thrown away or something? I don't know, but regardless, the use of final does make a significant difference.
– Casper Færgemand
Apr 3 '14 at 13:05
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