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Twitter Bootstrap - how to center elements horizontally or vertically
...ike:
class="text-center"
class="pagination-centered"
thanks to @Henning and @trejder
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Why is there a `null` value in JavaScript?
...pt, there are two values which basically say 'I don't exist' - undefined and null .
12 Answers
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Show and hide a View with a slide up/down animation
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With the new animation API that was introduced in Android 3.0 (Honeycomb) it is very simple to create such animations.
Sliding a View down by a distance:
view.animate().translationY(distance);
You can later slide the View back to its original position like this:
view.an...
Case-insensitive search
...atched');
}
Using a regular expression like that is probably the tidiest and most obvious way to do that in JavaScript, but bear in mind it is a regular expression, and thus can contain regex metacharacters. If you want to take the string from elsewhere (eg, user input), or if you want to avoid ha...
What is the syntax for “not equal” in SQLite?
... Feb 21 '12 at 22:32
Graham BorlandGraham Borland
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How to call shell commands from Ruby
How do I call shell commands from inside of a Ruby program? How do I then get output from these commands back into Ruby?
20...
How are feature_importances in RandomForestClassifier determined?
......). It is sometimes called "gini importance" or "mean decrease impurity" and is defined as the total decrease in node impurity (weighted by the probability of reaching that node (which is approximated by the proportion of samples reaching that node)) averaged over all trees of the ensemble.
In th...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...y having a #! at the start of the first line, followed by the interpreter (and any flags it may need).
If you're talking about other platforms, of course, this rule does not apply (but that "shebang line" does no harm, and will help if you ever copy that script to a platform with a Unix base, such ...
Python datetime - setting fixed hour and minute after using strptime to get day,month,year
... How can i remove everything after '2016-06-01' so that hour minute and second disappear?
– PV8
Mar 1 '19 at 14:05
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Why aren't python nested functions called closures?
I have seen and used nested functions in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ?
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