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Matplotlib: “Unknown projection '3d'” error
...toolkits.mplot3d import Axes3D
...
ax = fig.gca(projection='3d')
as used by the OP also works. (checked with matplotlib version 1.3.1)
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Why do people put code like “throw 1; ” and “for(;;);” in front of json responses? [du
...ruct, they'll be the attacker's own versions of those objects, with potentially-unexpected behaviour.
For example, you can hack a setter-property into Object, that would betray the values written in object literals:
Object.prototype.__defineSetter__('x', function(x) {
alert('Ha! I steal '+x);
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Rails: Open link in new tab (with 'link_to')
... I'm not going to downvote you, but this page is specifically about Ruby's link_to (from title).
– Herb Meehan
Sep 9 '15 at 23:29
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find() with nil when there are no records
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Yes, just do:
Challenge.find_by_id(10)
For Rails 4 and 5:
Challenge.find_by(id: 10)
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How do I join two lines in vi?
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Shift+J removes the line change character from the current line, so by pressing "J" at any place in the line you can combine the current line and the next line in the way you want.
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What is the maximum float in Python?
I think the maximum integer in python is available by calling sys.maxint .
3 Answers
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Get underlined text with Markdown
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I guess this is because underlined text is hard to read, and that it's usually used for hyperlinks.
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How to ignore deprecation warnings in Python
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This doesn't work for me at all, still seeing deprecationwarnings.
– user1244215
Oct 22 '13 at 0:43
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Converting a Java collection into a Scala collection
....toArray: _*)
Note that scala.collection.immutable.Set is made available by default thanks to Predef.scala.
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Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
...llback passing the result. The implementation (please read the comments in order):
// 1. Call helloCatAsync passing a callback function,
// which will be called receiving the result from the async operation
helloCatAsync(function(result) {
// 5. Received the result from the async function,
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