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What is the purpose and use of **kwargs?
...tains a good explanation of how it works, along with some nice examples.
<--Update-->
For people using Python 3, instead of iteritems(), use items()
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rails 3 validation on uniqueness on multiple attributes
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validates :zipcode, :uniqueness => {:scope => :recorded_at}
For multiple attributes:
validates :zipcode, :uniqueness => {:scope => [:recorded_at, :something_else]}
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How can I run dos2unix on an entire directory? [closed]
... @vguzmanp True, the find invocation does not do this check (although that would be simple enough to add), but modern dos2unix correctly skips binary files.
– Kyle Strand
Jan 7 '16 at 16:58
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How do I output an ISO 8601 formatted string in JavaScript?
...at desired... */
function ISODateString(d) {
function pad(n) {return n<10 ? '0'+n : n}
return d.getUTCFullYear()+'-'
+ pad(d.getUTCMonth()+1)+'-'
+ pad(d.getUTCDate())+'T'
+ pad(d.getUTCHours())+':'
+ pad(d.getUTCMinutes())+':'
+ pad(d.getUTCSe...
How to check if a value exists in an array in Ruby
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Alternate syntax: %w(Cat Dog Bird).include? 'Dog'
– scarver2
Dec 18 '12 at 22:04
190
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NSLog an object's memory address in overridden description method
...ter:
-(NSString *) description {
return [NSString stringWithFormat:@"<SomeClass: %p>\nparmeterOne: %@\nparameterTwo: %@",
self, self.parameterOne, self.paramterTwo];
}
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Thread vs ThreadPool
...when the main thread ends. Manually created threads are foreground by default (will keep running after the main thread has ended), but can be set to background before calling Start on them.
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How can I stop .gitignore from appearing in the list of untracked files?
... Once a file is tracked, you can use git update-index --assume-unchanged <file> to stop tracking changes without changing your repo. This is very useful on large shared projects where you need to make local changes, but nobody else wants to see your stuff committed to the repo. See blog.pag...
TortoiseGit not showing icon overlays
...es) just add a space at the start of the entries. So the entries would be <space-char>1TortoiseNormal and etc ... It is finally a matter of sorting :) it seems.
– Pratham
Feb 26 '15 at 12:09
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What is a “cache-friendly” code?
.... The cache hit rate is crucial for performance since every cache miss results in fetching data from RAM (or worse ...) which takes a lot of time (hundreds of cycles for RAM, tens of millions of cycles for HDD). In comparison, reading data from the (highest level) cache typically takes only a handfu...