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How to pass a class type as a function parameter
...types and even have an inheritance hierarchy (that is, if class B inherits from A, then B.Type also inherits from A.Type):
class A {}
class B: A {}
class C {}
// B inherits from A
let object: A = B()
// B.Type also inherits from A.Type
let type: A.Type = B.self
// Error: 'C' is not a subtype of ...
Do HTML5 custom data attributes “work” in IE 6?
...ey patch browsers if you are so inclined to make the missing collections. From my recent book experiments it is clear that data- attributes are usable now and are far superior to the current common scheme of overloading the class attribute value to contain style info and random meta data.
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Do Swift-based applications work on OS X 10.9/iOS 7 and lower?
...bout what changed 10.8->10.9 and 6.x->7.0 that allows code generated from Swift to run?
– Ivan Vučica
Jun 7 '14 at 9:53
21
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Differences between Perl and PHP [closed]
... used PHP until now, I wanted to know a bit about how the languages differ from each other.
6 Answers
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How do I kill background processes / jobs when my shell script exits?
...p 'kill $(jobs -p)' EXIT
Watch out to use single ', to prevent the shell from substituting the $() immediately.
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How can I wait for a thread to finish with .NET?
...th MTAThread - however this blocks your message pump and isn't recommended from what I've read.
3. Fire an event
See this page by Jon Skeet about events and multi-threading. It's possible that an event can become unsubcribed between the if and the EventName(this,EventArgs.Empty) - it's happened to ...
How to install a node.js module without using npm?
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You need to download their source from the github. Find the main file and then include it in your main file.
An example of this can be found here > How to manually install a node.js module?
Usually you need to find the source and go through the package.j...
Multiple linear regression in Python
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sklearn.linear_model.LinearRegression will do it:
from sklearn import linear_model
clf = linear_model.LinearRegression()
clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts],
[t.y for t in texts])
Then clf.coef_ will have the regression coefficient...
Search and replace a line in a file in Python
...es the content to a new file and replaces the old file with the new file:
from tempfile import mkstemp
from shutil import move, copymode
from os import fdopen, remove
def replace(file_path, pattern, subst):
#Create temp file
fh, abs_path = mkstemp()
with fdopen(fh,'w') as new_file:
...
startsWith() and endsWith() functions in PHP
...function.strrpos.php: "If the value is negative, search will instead start from that many characters from the end of the string, searching backwards." This seems to indicate that we're starting at character 0 (due to -strlength($haystack)) and searching backward from there? Doesn't that mean you're ...