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What does the Ellipsis object do?
...[1:2, ..., 0]
Its interpretation is purely up to whatever implements the __getitem__ function and sees Ellipsis objects there, but its main (and intended) use is in the numpy third-party library, which adds a multidimensional array type. Since there are more than one dimensions, slicing becomes m...
Generic deep diff between two objects
...alues" method).
var deepDiffMapper = function () {
return {
VALUE_CREATED: 'created',
VALUE_UPDATED: 'updated',
VALUE_DELETED: 'deleted',
VALUE_UNCHANGED: 'unchanged',
map: function(obj1, obj2) {
if (this.isFunction(obj1) || this.isFunction(obj2)) {
throw 'Inv...
Python unittests in Jenkins?
...ittest.TestCase):
@unittest.skip("demonstrating skipping")
def test_skipped(self):
self.fail("shouldn't happen")
def test_pass(self):
self.assertEqual(10, 7 + 3)
def test_fail(self):
self.assertEqual(11, 7 + 3)
JUnit with pytest
run the tests with:
py.te...
Rails Root directory path?
...
which returns a Pathname object. If you want a string you have to add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, which is a string.
...
Python function overloading
...','y','z'])
>>> @dispatch(Sprite, Point, Vector, int)
... def add_bullet(sprite, start, direction, speed):
... print("Called Version 1")
...
>>> @dispatch(Sprite, Point, Point, int, float)
... def add_bullet(sprite, start, headto, speed, acceleration):
... print("Called ve...
Get a random item from a JavaScript array [duplicate]
...ash :)):
var randomArray = [
'#cc0000','#00cc00', '#0000cc'
];
// use _.sample
var randomElement = _.sample(randomArray);
// manually use _.random
var randomElement = randomArray[_.random(randomArray.length-1)];
Or to shuffle an entire array:
// use underscore's shuffle function
var firstRa...
Select random lines from a file
...
@J.F.Sebastian The code: sort -R input | head -n <num_lines>. The input file was 279GB, with 2bi+ lines. Can't share it, though. Anyway, the point is you can keep some lines in memory with shuffle to do the random selection of what to output. Sort is going to sort the entire...
Iterating over Java collections in Scala
...ares the appropriate conversions.
import scala.collection.JavaConversions._
This won't work in previous versions though.
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How do I print the type or class of a variable in Swift?
...y<String>.self)")
Which outputs:
String(myvar0.dynamicType) -> __NSCFConstantString
String(myvar1.dynamicType) -> PureSwiftClass
String(myvar2.dynamicType) -> Int
String(myvar3.dynamicType) -> String
String(Int.self) -> Int
String((Int?).self -> Optional&...
Team city unmet requirement: MSBuildTools12.0_x86_Path exists
... Although I have MS Build Tools 2013 installed, the MSBuildTools12.0_x86_Path variable is still not set and the agent doesn't run. Is there a way to set it manually?
– bdaniel7
Apr 7 '15 at 16:27
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