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Possible to make labels appear when hovering over a point in matplotlib?
...nately, with the number of points that I have, the scatter plot would be unreadable if I labeled each point. Does anyone know of a way to create labels that only appear when the cursor hovers in the vicinity of that point?
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Can you get DB username, pw, database name in Rails?
...n from outside the rails environment:
require 'YAML'
info = YAML::load(IO.read("database.yml"))
print info["production"]["host"]
print info["production"]["database"]
...
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What is a “first chance exception”?
... mentioned in your comments above? Is it a result of self-experimentation? reading books (which one)? That's a very impressive insight! I would appreciate if you could take a moment to answer this please...
– anish
Jun 19 '15 at 12:52
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Proper use of beginBackgroundTaskWithExpirationHandler
...teger)beginTaskWithCompletionHandler:(CompletionBlock)_completion;
{
//read the counter and increment it
NSUInteger taskKey;
@synchronized(self) {
taskKey = self.taskKeyCounter;
self.taskKeyCounter++;
}
//tell the OS to start a task that should continue in the ...
Can a JSON value contain a multiline string
I am writing a JSON file which would be read by a Java program. The fragment is as follows...
5 Answers
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What does “xmlns” in XML mean?
...k/res/android:foo /> with regards to what it "means" when an XML parser reads the document.
NOTE: You cannot actually use the full namespace URI in place of the namespace prefix in an XML instance document.
Check out this tutorial on namespaces: http://www.sitepoint.com/xml-namespaces-explaine...
Does “display:none” prevent an image from loading?
...e it's not useful.
The image has a display:none style but its size may be read by the script.
Chrome v68.0 does not load images if the parent is hidden.
You may check it there : http://jsfiddle.net/tnk3j08s/
You could also have checked it by looking at the "network" tab of your browser's develop...
Save PL/pgSQL output from PostgreSQL to a CSV file
... You need to check two things:
Which files should the user be allowed to read/write on disk? This might be a particular directory, for instance, and the filename might have to have a suitable prefix or extension.
Which tables should the user be able to read/write in the database? This would normal...
How to change line-ending settings
...
Actually, if you re-read your own question, in the copy/pasted excerpts : "1 ... ("core.autocrlf" is set to "true") ... 2 ... ("core.autocrlf" is set to "input") ... 3 ... ("core.autocrlf" is set to "false")" so you basically answered your own q...
Equals(=) vs. LIKE
...e comparisons. The code is too long to paste here, but go to that link and read the body of my_strnncollsp_utf8mb4(). This collation can process multiple bytes at a time and it can apply various transforms (such as case insensitive comparison). The = operator is completely abstracted from the vagari...