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String.replaceAll single backslashes with double backslashes
...s tools to automatically escape text into target and replacement parts. So now we can focus only on strings, and forget about regex syntax:
replaceAll(Pattern.quote(target), Matcher.quoteReplacement(replacement))
which in our case can look like
replaceAll(Pattern.quote("\\"), Matcher.quoteReplac...
Is there a recommended format for multi-line imports?
...
Ah ok, I see what you mean now :)
– Gandalf Saxe
Aug 2 '18 at 13:18
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When to use a “has_many :through” relation in Rails?
...l same as the has_many relationship
has_many :group_memberships
end
Now you can treat it like a normal has_many, but get the benefit of the association model when you need it.
Note that you can also do this with has_one.
Edit: Making it easy to add a user to a group
def add_group(group, r...
What's the cleanest way of applying map() to a dictionary in Swift?
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No need for temp var and reduce is now a method in Swift 2.0: let newDict = oldDict.reduce([String:Int]()) { (var dict, pair) in dict["new\(pair.1)"] = pair.1; return dict }
– Zmey
Jul 23 '15 at 15:48
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What's the difference between lists enclosed by square brackets and parentheses in Python?
... for the above 'y=x' example , list and tuple behave in the same way now (verified in python3.8.5)
– Youjun Hu
Aug 15 at 9:11
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How to create a custom string representation for a class object?
...ite right. It is, however, from the Python 2 generation. An update for the now-current Python 3 would be:
class MC(type):
def __repr__(self):
return 'Wahaha!'
class C(object, metaclass=MC):
pass
print(C)
If you want code that runs across both Python 2 and Python 3, the six module h...
Why can't I center with margin: 0 auto?
...{
margin: 0 auto;
width: 90%;
}
Edit: Ok, I've seen the testpage now, and here is how I think you want it:
#header ul {
list-style:none;
margin:0 auto;
width:90%;
}
/* Remove the float: left; property, it interferes with display: inline and
* causes problems. (float: left; ...
Embedding SVG into ReactJS
...ort, check the docs’ list of supported SVG attributes. And here’s the (now closed) GitHub issue that tracked support for namespaced SVG attributes.
Previous answer
You can do a simple SVG embed without having to use dangerouslySetInnerHTML by just stripping the namespace attributes. For exam...
Differences between numpy.random and random.random in Python
...ndom numbers, and they're both completely deterministic - that is, if you know a few key bits of information, it's possible to predict with absolute certainty what number will come next. For this reason, neither numpy.random nor random.random is suitable for any serious cryptographic uses. But becau...
Embedding Python in an iPhone app
So it's a new millennium; Apple has waved their hand; it's now legal to include a Python interpreter in an iPhone (App Store) app.
...