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Which characters are valid in CSS class names/selectors?
What characters/symbols are allowed within the CSS class selectors?
I know that the following characters are invalid , but what characters are valid ?
...
Asking the user for input until they give a valid response
.... Feel free to use them in any context, without my explicit permission or knowledge. Regarding the non-code-block segments, If you want to paste my entire answer into a "Learn Python" book you're writing, let's talk royalties ;-)
– Kevin
Jul 24 at 13:50
...
javascript: pause setTimeout();
...nction() {
window.clearTimeout(timerId);
remaining -= Date.now() - start;
};
this.resume = function() {
start = Date.now();
window.clearTimeout(timerId);
timerId = window.setTimeout(callback, remaining);
};
this.resume();
};
var timer = new ...
How to generate a random number in C++?
...I need to have random numbers in it (to simulate the sides of the die. I know how to make it between 1 and 6). Using
11 A...
machine learning libraries in C# [closed]
... checkout the AForge homepage - According to the homepage, the new version now supports genetic algorithms and machine learning as well. It looks like it's progressed a lot since I last played with it)
I don't know it's it's anything like WEKA as I've never used that.
(there's also an article on i...
Scala 2.8 breakOut
... happens, the types From, T and To have already been inferred, because we know that map is expecting CanBuildFrom[List[String], (Int, String), Map[Int, String]]. Therefore:
From = List[String]
T = (Int, String)
To = Map[Int, String]
To conclude let's examine the implicit received by breakOut itse...
Is there a way to include commas in CSV columns without breaking the formatting?
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Now THIS should be the accepted answer as it proposes a great solution that likely solves 99% of use cases.
– BuZz
Jul 19 '18 at 8:51
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Encoding an image file with base64
...m going to disclose that it's my site. Will it be legal to edit the answer now to disclose that it is my site? Or I should not edit it.
– CodeSpeedy
Apr 27 '19 at 14:42
add a ...
How to get the original value of an attribute in Rails
...flow.com/a/50973808/9359123
Appending _was is deprecated in rails 5.1, now you should append _before_last_save
Something like:
before_save object
do_something_with object.name_before_last_save
end
Will return the name value before your last save at database (works for save and create)
The...
When should I use the Visitor Design Pattern? [closed]
...
(Suppose it is a complex hierarchy with a well-established interface.)
Now we want to add a new operation to the hierarchy, namely we want each animal to make its sound. As far as the hierarchy is this simple, you can do it with straight polymorphism:
class Animal
{ public: virtual void makeSou...