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Haml: Control whitespace around text
...irst
= succeed ',' do
= link_to 'link somewhere', 'http://example.com'
- if @condition
then render this half of the sentence if a condition is met
Produces:
I will first
<a href="http://example.com">link somewhere</a>,
then render this half of the sentence if a condition is met
...
When to use cla(), clf() or close() for clearing a plot in matplotlib?
...
They all do different things, since matplotlib uses a hierarchical order in which a figure window contains a figure which may consist of many axes. Additionally, there are functions from the pyplot interface and there are methods on the F...
jquery, find next element by class
... use .next(), like this:
$(obj).closest('tr').next().find('.class');
Or if there may be rows in-between without the .class inside, you can use .nextAll(), like this:
$(obj).closest('tr').nextAll(':has(.class):first').find('.class');
...
Regular expression matching a multiline block of text
...efeed (\n), a carriage-return (\r), or a carriage-return+linefeed (\r\n). If you aren't certain that your target text uses only linefeeds, you should use this more inclusive version of the regex:
re.compile(r"^(.+)(?:\n|\r\n?)((?:(?:\n|\r\n?).+)+)", re.MULTILINE)
BTW, you don't want to use the D...
Running multiple commands with xargs
...ell-like (but not quite shell-compatible) parsing to the stream it reads. (If you don't have GNU xargs, you can use tr '\n' '\0' <a.txt | xargs -0 ... to get line-oriented reading without -d).
The _ is a placeholder for $0, such that other data values added by xargs become $1 and onward, which ha...
anchor jumping by using javascript
...shes. Changing it back.
}
This uses replaceState to manipulate the url. If you also want support for IE, then you will have to do it the complicated way:
function jump(h){
var top = document.getElementById(h).offsetTop; //Getting Y of target element
window.scrollTo(0, top); ...
How can I use Bash syntax in Makefile targets?
...often find Bash syntax very helpful, e.g. process substitution like in diff <(sort file1) <(sort file2) .
6 Answer...
Rails raw SQL example
...ode in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
6 Answers
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What do I return if the return type of a method is Void? (Not void!)
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So what am I supposed to return if the return type of a function has to be Void?
Use return null. Void can't be instantiated and is merely a placeholder for the Class<T> type of void.
What's the point of Void?
As noted above, it's a placehold...
Populating spinner directly in the layout xml
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Just wanted to add that if you want separate values per the selected item, you can specify android:entryValues="@array/array_name_values".
– Ε Г И І И О
Jun 4 '13 at 16:50
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