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git pull while not in a git directory
...ty, 2015-03-06, Git v2.3.4).
That means the documentation now (finally) includes:
If '<path>' is present but empty, e.g. -C "", then the current working directory is left unchanged.
You can see git -C used with Git 2.26 (Q1 2020), as an example.
See commit b441717, commit 9291e63, ...
How do I tell Maven to use the latest version of a dependency?
...files. Forms
one half of the built-in "Poor Man's
SCM".
Just thought I'd include it for any future reference.
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C++实现句柄多版本过期置old的思路 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++实现句柄多版本过期置old的思路使用MVCC可以解决。轻量级的不使用MVCC的话，思路如下：核心ObjPtrmap<id, ObjPtr> map_;Get的时候返回最新的ObjPtr；当ObjPtr有新版本要更新的时候，将map中对应id的ObjPtr中is 使用MVCC可以解决。
轻量...
setting an environment variable in virtualenv
...ms that .env files bork Heroku builds, at least in my experience. So don't include it in your repo. Long time user / huge fan of autoenv btw. Hi Kenneth, you da man!
– galarant
Jan 29 '15 at 0:42
...
Accessing class variables from a list comprehension in the class definition
...the class block; it does not extend to the code blocks of methods – this includes comprehensions and generator expressions since they are implemented using a function scope. This means that the following will fail:
class A:
a = 42
b = list(a + i for i in range(10))
So, to summarize: ...
data.table vs dplyr: can one do something well the other can't or does poorly?
...aster than dplyr as the number of groups and/or rows to group by increase, including benchmarks by Matt on grouping from 10 million to 2 billion rows (100GB in RAM) on 100 - 10 million groups and varying grouping columns, which also compares pandas. See also updated benchmarks, which include Spark a...
SQL Server Management Studio, how to get execution time down to milliseconds
...urn on Client Statistics by doing one of the following:
Menu: Query > Include client Statistics
Toolbar: Click the button (next to Include Actual Execution Time)
Keyboard: Shift-Alt-S
Then you get a new tab which records the timings, IO data and rowcounts etc for (up to) the last 10 exectio...
How to check if a number is between two values?
... you'd prefer to have the option to check a number is in the defined range including the end-points:
Number.prototype.between = function(a, b, inclusive) {
var min = Math.min.apply(Math, [a, b]),
max = Math.max.apply(Math, [a, b]);
return inclusive ? this >= min && this &l...
Parsing JSON from XmlHttpRequest.responseJSON
...
I think you have to include jQuery to use responseJSON.
Without jQuery, you could try with responseText and try like eval("("+req.responseText+")");
UPDATE:Please read the comment regarding eval, you can test with eval, but don't use it in wor...