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Git: How to remove file from index without deleting files from any repository
... add foo.conf again (it is possible, but requires -f/--force).
If you have more than one configuration file, you might consider ‘moving’ them all into a single directory and ignoring the whole thing (by ‘moving’ I mean changing where the program expects to find its configuration files, and g...
What are paramorphisms?
...ficient, but if you're interested in sheer expressivity, para gives you no more than foldr. If you use this foldr-encoded version of para, then safeTail will take linear time after all, copying the tail element by element.
So, that's it: para is a more convenient version of foldr which gives you im...
How does `is_base_of` work?
...t<B, D>&)
This would mean that we can't select by constness anymore. In an ordinary overload resolution scenario, the call would now be ambiguous because normally the return type won't participate in overload resolution. For conversion functions, however, there is a backdoor. If two conv...
How to concatenate items in a list to a single string?
... to be joined; see the documentation, or this answer which goes into a bit more detail.
– Burhan Khalid
Apr 6 '14 at 6:53
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Make first letter of a string upper case (with maximum performance)
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Imitate Facebook hide/show expanding/contracting Navigation Bar
... absolute amount, which results in a slower fade. The original behavior is more Facebook-like, but I like this one, too.
Note: This solution is iOS 7+ only. Be sure to add the necessary checks if you're supporting older versions of iOS.
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How to generate a random integer number from within a range
... of the interval into which rand() returns (i.e. is a power of 2). Furthermore, one has no idea whether the moduli of rand() are independent: it's possible that they go 0, 1, 2, ..., which is uniform but not very random. The only assumption it seems reasonable to make is that rand() puts out a Poi...
How to Create Multiple Where Clause Query Using Laravel Eloquent?
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In Laravel 5.3 (and still true as of 7.x) you can use more granular wheres passed as an array:
$query->where([
['column_1', '=', 'value_1'],
['column_2', '<>', 'value_2'],
[COLUMN, OPERATOR, VALUE],
...
])
Personally I haven't found use-case for this ...
What are the use(s) for tags in Go?
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Excellent answer. Way more useful info in here than in the one with ten times this karma.
– Darth Egregious
Jul 1 '15 at 13:53
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sudo echo “something” >> /etc/privilegedFile doesn't work
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