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Shuffling a list of objects
..., when possible, is seeded by a source of real randomness from the OS. For all but cryptography purposes it is random "enough". This is laid out in detail in the random module's documentation.
– dimo414
May 5 '16 at 2:50
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How to access custom attributes from event object in React?
...: function(i) {
// do whatever
},
Notice the bind(). Because this is all javascript, you can do handy things like that. We no longer need to attach data to DOM nodes in order to keep track of them.
IMO this is much cleaner than relying on DOM events.
Update April 2017: These days I would wri...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
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Starting with Paperclip version 4.0, all attachments are required to include a content_type validation, a file_name validation, or to explicitly state that they're not going to have either.
Paperclip raises Paperclip::Errors::MissingRequiredValidatorError erro...
Checking if an object is a given type in Swift
... array that is made up of AnyObject . I want to iterate over it, and find all elements that are array instances.
18 Answer...
Is HTML5 localStorage asynchronous?
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Nope, all localStorage calls are synchronous.
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How can I create a Makefile for C projects with SRC, OBJ, and BIN subdirectories?
...JECTS) rule is problematic, because:
it's kind of indiscriminate, making all sources prerequisites of every object,
it often uses the wrong source (as you discovered with file1.o and file2.o)
it tries to build executables instead of stopping at objects, and
the name of the target (foo.o) is not...
c# datatable to csv
...he data is saved into the csv file, however the data is not separated. It all exists within the first cell of each row.
2...
Conveniently map between enum and int / String
...n't require 'fiddling with reflection' because it's based on the fact that all enum types implicitly inherit the Enum interface.
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How to do a PUT request with curl?
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"man curl" on -X: "Normally you don't need this option. All sorts of GET, HEAD, POST and PUT requests are rather invoked by using dedicated command line options." But I couldn't find another way.
– Martin C. Martin
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How do I set cell value to Date and apply default Excel date format?
...ing Apache POI for some time to read existing Excel 2003 files programmatically. Now I have a new requirement to create entire .xls files in-memory (still using Apache POI) and then write them to a file at the end. The only problem standing in my way is the handling of cells with dates.
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