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What optimizations can GHC be expected to perform reliably?
...has a lot of optimizations that it can perform, but I don't know what they all are, nor how likely they are to be performed and under what circumstances.
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上班狗来算算 你离财务自由还差多少钱？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...需要15万以上的现金年收入，则需要150万的本金。
C)终极版财务自由
这才是大BOSS~
如果你想实现终极版财务自由，这已经不是钱能计算出来的了，即便是胡润口中的1个亿，也不一定能让你达到终极版财务自由。
财务自由的最...
LINQ To Entities does not recognize the method Last. Really?
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That limitation comes down to the fact that eventually it has to translate that query to SQL and SQL has a SELECT TOP (in T-SQL) but not a SELECT BOTTOM (no such thing).
There is an easy way around it though, just order descending and then do a First(), which is what you di...
Common use-cases for pickle in Python
...hon data over a TCP connection in a multi-core or distributed system (marshalling)
3) storing python objects in a database
4) converting an arbitrary python object to a string so that it can be used as a dictionary key (e.g. for caching & memoization).
There are some issues with the last one ...
Concatenate multiple files but include filename as section headers
... Of note, passing -n to grep also yields line numbers which allows you to write simple linters with pinpointing that could be picked up by, e.g., emacs.
– DepressedDaniel
Mar 13 '17 at 3:23
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What is a None value?
...n't write the sticker "F", there was already an F sticker on the None, and all you did was move it, from None to "fork". So when you type F = None, you're "reset[ting] it to its original, empty state", if we decided to treat None as meaning empty state.
I can see what he's getting at, but that's a...
python max function using 'key' and lambda expression
... def. Thus, you can't use statements inside a lambda, only expressions are allowed.
What does max do?
max(a, b, c, ...[, key=func]) -> value
With a single iterable argument, return its largest item. With two or
more arguments, return the largest argument.
So, it simply returns the...
jQuery Selector: Id Ends With?
...:inpTest"). This does not $("[id$='inpTest']"). Is it because colon is not allowed in ID (but JSF adds it!)?
– Panu Haaramo
Apr 26 '14 at 10:16
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What is the most efficient/elegant way to parse a flat table into a tree?
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Now that MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL
SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentI...
Looking for a 'cmake clean' command to clear up CMake output
Just as make clean deletes all the files that a makefile has produced, I would like to do the same with CMake. All too often I find myself manually going through directories removing files like cmake_install.cmake and CMakeCache.txt , and the CMakeFiles folders.
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