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How to modify a global variable within a function in bash?
...$?
The only bad sideffects are:
It needs a modern bash.
It forks quite more often.
It needs the annotation (named after your function, with an added _)
It sacrifices file descriptor 3.
You can change it to another FD if you need that.
In _capture just replace all occurances of 3 with another...
Font size in CSS - % or em?
... of that this article is from 2007. Since then modern browsers have become more common, and modern browsers usually zoom-in instead of increasing font-size as default. Because of this, 'px' has become more common and in my opinion a better approach. Of course that's debatable but I've personally enc...
Email validation using jQuery
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With new top level domains becoming more common this regex may need modifying .systems and .poker etc are all valid TLDs now but would fail the regex check
– Liath
Sep 5 '14 at 7:35
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Set the absolute position of a view
...params.leftMargin = 50;
params.topMargin = 60;
rl.addView(iv, params);
More examples:
Places two 30x40 ImageViews (one yellow, one red) at (50,60) and (80,90), respectively:
RelativeLayout rl = (RelativeLayout) findViewById(R.id.my_relative_layout);
ImageView iv;
RelativeLayout.LayoutParams pa...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
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Python dictionary from an object's fields
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How do I list all files of a directory?
...reates a new list in a new memory location. This means extend is generally more efficient than +, but it can sometimes lead to confusion if multiple objects hold references to the list. Lastly, it's worth noting that f += filenames is equivalent to f.extend(filenames), not f = f + filenames.
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Selecting the first “n” items with jQuery
... Though the :lt(20) approach looks much cleaner, using slice is much more efficient if you have a large result set to start with. Unfortunately, when evaluating ":lt" and other positional selectors, jQuery loops through the entire set, even if it's just getting the first element. I've written ...
Handling JSON Post Request in Go
...It is intended for streams of JSON objects, not a single object. It is not more efficient for a single JSON object since it reads the entire object into memory. It has a downside that if garbage is included after the object it will not complain. Depending on a few factors, json.Decoder may not fully...
Escape Character in SQL Server
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Edited answer to more it more clear and better fit the question
– Revious
Apr 7 at 13:14
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