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Regular expression to match a word or its prefix
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Square brackets are meant for character class, and you're actually trying to match any one of: s, |, s (again), e, a, s (again), o and n.
Use parentheses instead for grouping:
(s|season)
or non-capturing group:
(?:s|season)
Note: Non-capture groups tell the engine that it doesn...
How to access class constants in Twig?
...STANT') }} ? And what do you do when your class names overlaps ? you loose all the benefit of namespaces here
– 0x1gene
Aug 27 '15 at 20:37
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Converting stream of int's to char's in java
...he right way to go (after checking whether it's -1 or not)... but it's normally more efficient and convenient to call read(char[], int, int) to read a whole block of text at a time. Don't forget to check the return value though, to see how many characters have been read.
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How to delete cookies on an ASP.NET website
...Abandon will clear the ASP.NET session cookie, but not cookies you set manually, like userID here. And Cookies["whatever"] is never null; the framework will create a cookie if you ask for a non-existent one.
– Andomar
Jul 9 '11 at 14:53
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warning: Insecure world writable dir /usr/local/bin in PATH, mode 040777
...hmod go-w /usr/local/bin
Obviously, that will mean you can no longer install material in /usr/local/bin except via 'sudo', but you probably shouldn't be doing that anyway.
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Scroll Element into View with Selenium
...rowser? There is a focus method in Selenium, but it does not seem to physically scroll the view in FireFox. Does anyone have any suggestions on how to do this?
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django MultiValueDictKeyError error, how do I deal with it
...does not exist.
is_private = request.POST.get('is_private', False)
Generally,
my_var = dict.get(<key>, <default>)
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Alternate output format for psql
...with columns c1 through cN . The columns are wide enough that selecting all columns causes a row of query results to wrap multiple times. Consequently, the output is hard to read.
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angularjs: ng-src equivalent for background-image:url(…)
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It's dirtier, in the sense that a directive fits all, everywhere you need a dynamic background. The question mentioned it felt less reusable.
– Christian Bonato
May 10 '16 at 18:21
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Default argument values in JavaScript functions [duplicate]
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In javascript you can call a function (even if it has parameters) without parameters.
So you can add default values like this:
function func(a, b){
if (typeof(a)==='undefined') a = 10;
if (typeof(b)==='undefined') b = 20;
//your code
}
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