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Lazy Method for Reading Big File in Python?
I have a very big file 4GB and when I try to read it my computer hangs.
So I want to read it piece by piece and after processing each piece store the processed piece into another file and read next piece.
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How do I use Node.js Crypto to create a HMAC-SHA1 hash?
I want to create a hash of I love cupcakes (signed with the key abcdeg )
3 Answers
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Capture Signature using HTML5 and iPad
... how well it looks. One note about using it which helped me: add a border to the canvas so you can see how it is being adjusted. Also note that css changes to the canvas do some crazy things, so just specify a height and width in the canvas element if this get out of control.
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Convert string to Python class object?
Given a string as user input to a Python function, I'd like to get a class object out of it if there's a class with that name in the currently defined namespace. Essentially, I want the implementation for a function which will produce this kind of result:
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How can I output leading zeros in Ruby?
...iles from a Ruby script. The numbers come from incrementing a counter, but to make them sort nicely in the directory, I'd like to use leading zeros in the filenames. In other words
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
I'm adding TextViews programmatically in a for-loop and add them to an ArrayList.
14 Answers
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Making interface implementations async
I’m currently trying to make my application using some Async methods.
All my IO is done through explicit implementations of an interface and I am a bit confused about how to make the operations async.
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JavaScript pattern for multiple constructors
I need different constructors for my instances. What is a common pattern for that?
9 Answers
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Difference between static class and singleton pattern?
...real (i.e. practical) difference exists between a static class and a singleton pattern?
39 Answers
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Node: log in a file instead of the console
... There are much better utilites now around logging. I highly recommend Winston
Update Late 2013 - We still use winston, but now with a logger library to wrap the functionality around logging of custom objects and formatting. Here is a sample of our logger.js https://gist.github.com/rtgibbons/735487...