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Bootstrap 3 Collapse show state with Chevron icon
...til you click on the panel so you want to include the "collapsed" class in order to display the correct chevron (i.e., chevron-right is displayed when collapsed and chevron-down when open).
HTML
<div class="panel panel-default">
<div class="panel-heading collapsed" data-toggle="collap...
How to generate a random string of a fixed length in Go?
...d be tempted to use these to read as many bytes as we need in one step, in order to achieve better performance.
There is one small "problem" with this: how many bytes do we need? We could say: as many as the number of output letters. We would think this is an upper estimation, as a letter index use...
How should one use std::optional?
...lacement new and a lot more other things with proper alignment and size in order to make it a literal type (i.e. use with constexpr) among other things. The naive T and bool approach would fail pretty quickly.
– Rapptz
Mar 13 '14 at 22:05
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Any way to limit border length?
Is there any way to limit the length of a border. I have a <div> that has a bottom border, but I want to add a border on the left of the <div> that only stretches half of the way up.
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Simplest code for array intersection in javascript
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@bplittle I just created an array from the set in order to remove duplicates, otherwise, using the array directly would result in returning duplicates. For example, if I used the array directly, intersect([1,2,2,4],[2,3]) would yield [2, 2].
– nbarbosa
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Dynamic type languages versus static type languages
...e, "solving" the halting problem.
However, no type system is perfect. In order to eliminate a particular class of errors, they must also reject certain perfectly valid programs which violate the rules. This is why Twelf doesn't really solve the halting problem, it just avoids it by throwing out a...
What is the difference between NTFS Junction Points and Symbolic Links?
...n a path is parsed in an open, the system remembers traversed junctions in order to evaluate relative symlinks that traverse mount points. These traversals need to handle a junction as if it's a regular directory, whereas a symlink is parsed as its target path. For example, say "C:\junction" and "C:...
Allow user to select camera or gallery for image
...a list of Intent options, it is much better to use Intent.createChooser in order to get access to the graphical icons and short names of the various 'Camera', 'Gallery' and even Third Party filesystem browser apps such as 'Astro', etc.
This describes how to use the standard chooser-intent and add a...
How to change the output color of echo in Linux
...put accepts scripts containing one command per line, which are executed in order before tput exits.
Avoid temporary files by echoing a multiline string and piping it:
echo -e "setf 7\nsetb 1" | tput -S # set fg white and bg red
See also
See man 1 tput
See man 5 terminfo for the complete lis...
Expand a random range from 1–5 to 1–7
...verage to 4 significant figures, and the resulting output was uniform.
In order to port this code to a language that doesn't have arbitrarily large integers built-in, you'll have to cap the values of pow5 and pow7 to the maximum value of your native integral type -- if they get too big, then reset ...