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Parse date string and change format
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You can install the dateutil library. Its parse function can figure out what format a string is in without having to specify the format like you do with datetime.strptime.
from dateutil.parser import parse
dt = parse('Mon Feb 15 2010')...
Function passed as template argument
...;< "Result is " << temp << std::endl;
}
which can now be called as either:
doOperation(add2);
doOperation(add3());
See it live
The problem with this is that if it makes it tricky for the compiler to inline the call to add2, since all the compiler knows is that a function pointer...
使用DOS命令 taskkill 结束本地进程，结束远程进程 - 更多技术 - 清泛网 - ...
...面服务有问题登不上时使用）。在DOS窗口，输入taskkill /f /im 进程名.exe /t
/f /im /t 表示指定进程名称，强制终止进程及子进程。参考帮助如下：
描述:
使用该工具按照进程 ID (PID) 或映像名称终止任务。
参数列表:
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Removing Data From ElasticSearch
...lasticSearch. I have deleted my indexes. However, that doesn't seem to actually remove the data itself. The other stuff I've seen points to the Delete by Query feature. However, I'm not even sure what to query on. I know my indexes. Essentially, I'd like to figure out how to do a
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Convert column classes in data.table
...hat is the idiomatic way of doing this for a subset of columns (instead of all of them)? I've defined a character vector convcols of columns. dt[,lapply(.SD,as.numeric),.SDcols=convcols] is almost instant while dt[,convcols:=lapply(.SD,as.numeric),.SDcols=convcols] almost freezes up R, so I'm guessi...
Cannot highlight all occurrences of a selected word in Eclipse
...C/C++ Write occurrences. But still when I select a word it won't highlight all occurrences of that specific word.
12 Answer...
How to scroll to the bottom of a UITableView on the iPhone before the view appears
I have a UITableView that is populated with cells of a variable height. I would like the table to scroll to the bottom when the view is pushed into view.
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Any equivalent to .= for adding to beginning of string in PHP?
Just wondering if there is something like .= for adding text to the beginning of a string, e.g.:
5 Answers
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cartesian product in pandas
...n unused column name, then add dummy columns with that name, merge, and finally drop the column on the result? Creating, as opposed to reading, data with pandas is just a pain
– Bananach
Oct 10 '19 at 7:31
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Print all but the first three columns
...lt;=NF;i++)$(i-(n-1))=$i;NF=NF-(n-1);print $0}' n=4 | tr ' ' '-'
4-5-6-7
All other answers before Sep-2013 are nice but add extra spaces:
Example of answer adding extra leading spaces:
$ echo '1 2 3 4 5 6 7' |
awk '{$1=$2=$3=""}1' |
tr ' ' '-'
---4-5-6-7
Example of answer adding extra t...