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Twitter image encoding challenge [closed]
...which I'm currently doing manually in Inkscape).
Version 2
UPDATE: v2 is now qualified to compete. Changes:
Command-line control input/output and debugging
Uses XML parser (lxml) to handle SVG instead of regex
Packs 2 path segments per unicode symbol
Documentation and cleanup
Support style="fill...
How do I move files in node.js?
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This will not work if you are crossing partitions or using a virtual filesystem not supporting moving files. You better use this solution with a copy fallback
– Flavien Volken
Sep 2 '15 at 12:50
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How do you check in python whether a string contains only numbers?
...s, negatives numbers, etc.. All the examples before will be wrong.
Until now I got something like this, but I think it could be a lot better:
'95.95'.replace('.','',1).isdigit()
will return true only if there is one or no '.' in the string of digits.
'9.5.9.5'.replace('.','',1).isdigit()
wil...
Read only the first line of a file?
...ed to use from __future__ import with_statement
In Python 3 you should specify the file encoding for the file you open. Read more...
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Sorting an array of objects in Ruby by object attribute?
...me + @first_name <=> other.last_name + other.first_name
end
end
Now an array of Person objects will be sortable on last_name.
ar = [Person.new("Eric", "Cunningham"), Person.new("Homer", "Allen")]
puts ar # => [ "Eric Cunningham", "Homer Allen"] (Person objects!)
ar.sort!
puts ar ...
How can I make SQL case sensitive string comparison on MySQL?
I have a function that returns five characters with mixed case. If I do a query on this string it will return the value regardless of case.
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Can anyone explain CreatedAtRoute() to me?
...reated resource when you invoke a POST method to store some new object.
So if you POST an order item for instance, you might return a route like 'api/order/11' (11 being the id of the order obviously).
BTW I agree that the MSDN article is of no use in understanding this. The route you actually retu...
How to perform Callbacks in Objective-C
...ss" and MyClass calls the delegate methods on the delegate as appropriate. If your delegate callbacks are optional, you'll typically guard them at the dispatch site with something like "if ([delegate respondsToSelector:@selector(myClassWillDoSomething:)) {". In my example, the delegate is required t...
MongoDB/NoSQL: Keeping Document Change History
...equirement in database applications is to track changes to one or more specific entities in a database. I've heard this called row versioning, a log table or a history table (I'm sure there are other names for it). There are a number of ways to approach it in an RDBMS--you can write all changes fr...
How are echo and print different in PHP? [duplicate]
Is there any major and fundamental difference between these two functions in PHP?
5 Answers
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