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What does Python's eval() do?
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In Python 2.x input(...) is equivalent to eval(raw_input(...)), in Python 3.x raw_input was renamed input, which I suspect lead to your confusion (you were probably looking at the documentation for input in Python 2.x). Additionally, eval(input(...)) would work fine in Py...
What is the role of src and dist folders?
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src/ stands for source, and is the raw code before minification or concatenation or some other compilation - used to read/edit the code.
dist/ stands for distribution, and is the minified/concatenated version - actually used on production sites.
This is a co...
Are C++ enums signed or unsigned?
... For example:
enum Fruit
{
Apple = 0,
Banana,
Pineapple,
Orange,
Kumquat
};
enum Fruit fruitVariable = Banana; // Okay, Banana is a member of the Fruit enum
fruitVariable = 1; // Error, 1 is not a member of enum Fruit even though it has the same value as banana.
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How to replace a character by a newline in Vim
...u could not just use just LF nor CR to get the correct output. MS DOS used raw printer data as the text file format, Mac OS used CR and converted from that to printer's raw format and UNIX used LF and converted from that to printer's raw format.
– Mikko Rantalainen
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Is it possible to use Swift's Enum in Obj-C?
...nums in Swift: They are not failable. In a fragment like if let a = MyEnum(rawValue: 12345) where 12345 is not part of that enum, the result is not an optional but some invalid enum.
– bio
Sep 5 '17 at 13:11
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How do I deal with certificates using cURL while trying to access an HTTPS url?
...or if you try to install apt-cyg via the recommended method using curl and raw.github.com.
– 10gistic
Jun 23 '13 at 22:26
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What's the difference between identifying and non-identifying relationships?
... @Eugene, yes I would expect that to be a non-identifying relationship. user_id should be the primary key by itself, and updated_by is not part of a multi-column primary key.
– Bill Karwin
Jul 29 '11 at 14:18
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AWS MySQL RDS vs AWS DynamoDB [closed]
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Really DynamoDB and MySQL are apples and oranges. DynamoDB is a NoSQL storage layer while MySQL is used for relational storage. You should pick what to use based on the actual needs of your application. In fact, some applications might be well served by using both...
Java Byte Array to String to Byte Array
...ere is no other way. The best way would be for you to receive the bytes as raw data (as binary) instead of a string, or perhaps even as a Base64 string, which would only require you to convert it back as a base 256 (binary) value.
– Yanick Rochon
Feb 4 '13 at 1...
How to perform Unwind segue programmatically?
...r simplification. This is a screenshot in Xcode 6.
Control-drag from the orange icon to the red Exit icon to create an unwind without any actions/buttons in the view.
Then select the unwind segue in the sidebar:
Set a Segue Identifier string:
Access that identifier from code:
[sel...