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Which regular expression operator means 'Don't' match this character?
...tead of specifying all the characters literally, you can use shorthands inside character classes: [\w] (lowercase) will match any "word character" (letter, numbers and underscore), [\W] (uppercase) will match anything but word characters; similarly, [\d] will match the 0-9 digits while [\D] matches...
Can I make the foreign key field optional in Django model
... answered Jul 8 '11 at 4:58
Abid AAbid A
5,99833 gold badges2828 silver badges3030 bronze badges
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setup cron tab to specific time of during weekdays
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Same as you did for hours:
*/2 09-18 * * 1-5 /path_to_script
0 and 7 stand for Sunday
6 stands for Saturday
so, 1-5 means from Monday to Friday
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jQuery.active function
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This is a variable jQuery uses internally, but had no reason to hide, so it's there to use. Just a heads up, it becomes jquery.ajax.active next release. There's no documentation because it's exposed but not in the official API, lots of things are like this actually, like jQuery.cache (wh...
How to set background color in jquery
... May 14 '19 at 11:36
Waseem KhalidWaseem Khalid
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ggplot: How to increase spacing between faceted plots?
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Use the theme function:
library(grid)
p + theme(panel.spacing = unit(2, "lines"))
See also here: Slicing plots generated by ggplot2
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Making a div vertically scrollable using CSS
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You have it covered aside from using the wrong property. The scrollbar can be triggered with any property overflow, overflow-x, or overflow-y and each can be set to any of visible, hidden, scroll, auto, or inherit. You are currently looking at the...
How to define a function in ghci across multiple lines?
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You can completely avoid indentation using a trailing let. Simply type a let followed by a newline: let ⏎. Then fac 0 = 1 ⏎. Then fac n = n * fac (n-1) ⏎ ⏎ and you're done!
– Iceland_jack
Sep 17 '1...
Line continuation for list comprehensions or generator expressions in python
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Specifically, line breaks are ignored inside any brackets - (), [] and {}.
– user395760
Apr 27 '11 at 19:03
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Assign variables to child template in {% include %} tag Django
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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