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Collection was modified; enumeration operation may not execute
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I do not understand why you did a ToList and why that fixes everything
– PositiveGuy
Feb 29 '12 at 6:13
207
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What are the differences between type() and isinstance()?
...using the argument as if it was of a certain desired type, do it in a try/except statement catching all exceptions that could arise if the argument was not in fact of that type (or any other type nicely duck-mimicking it;-), and in the except clause, try something else (using the argument "as if" it...
JSON.NET Error Self referencing loop detected for type
...ize POCO class that was automatically generated from Entity Data Model .edmx and when I used
25 Answers
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Why would introducing useless MOV instructions speed up a tight loop in x86_64 assembly?
...tutorial shows how branch prediction buffers work. The cache buffer is indexed by the lower portion of the address of the branch instruction. This works well unless two important uncorrelated branches share the same lower bits. In that case, you end-up with aliasing which causes many mispredicted ...
How can I make a Python script standalone executable to run without ANY dependency?
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You can use py2exe as already answered and use Cython to convert your key .py files in .pyc, C compiled files, like .dll in Windows and .so on Linux.
It is much harder to revert than common .pyo and .pyc files (and also gain in performance!)...
Ruby, remove last N characters from a string?
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Ruby 2.5+
As of Ruby 2.5 you can use delete_suffix or delete_suffix! to achieve this in a fast and readable manner.
The docs on the methods are here.
If you know what the suffix is, this is idiomatic (and I'd argue, even more readable than other answers here):
'abc123'.d...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
... which could be used to zip streams (this is illustrated in the tutorial Exploring Java8 Lambdas. Part 1 by Dhananjay Nene ). This function :
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Create an enum with string values
...cript 1.8 you can use string literal types to provide a reliable and safe experience for named string values (which is partially what enums are used for).
type Options = "hello" | "world";
var foo: Options;
foo = "hello"; // Okay
foo = "asdf"; // Error!
More : https://www.typescriptlang.org/doc...
Format floats with standard json module
... answered Sep 19 '09 at 2:48
Alex MartelliAlex Martelli
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