大约有 36,200 项符合查询结果（耗时：0.0475秒） [XML]
Looping over a list in Python
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ipython notebook clear cell output in code
...r if you have clear_output inside a loop.
– Toke Faurby
Jun 8 '17 at 23:49
1
half of the screen a...
Security of REST authentication schemes
...(but over SSL only).
These schemes authenticate that the request was sent by someone expected. TLS (SSL) (without client authentication) ensures that the data sent over the wire remains untampered. They are separate - but complementary - concerns.
For those interested, I've expanded on an SO que...
lose vim colorscheme in tmux mode
...
As @romainl mentions above, I needed to force tmux to use 256 colors by adding the -2 flag:
$ tmux -2
I added alias tmux='tmux -2' to my bash_profile, so, I don't forget :)
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How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?
...(/T/, ' ').replace(/\..+/, '')
ISO8601 is necessarily UTC (also indicated by the trailing Z on the first result), so you get UTC by default (always a good thing).
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How to extract one column of a csv file
...eld Separator) is the variable whose value is dafaulted to
space. So awk by default splits at space for any line.
So using BEGIN (Execute before taking input) we can set this field to anything we want...
awk 'BEGIN {FS = ","}; {print $3}'
The above code will print the 3rd column in a csv file...
SQL Server Text type vs. varchar data type [closed]
...ou search on the string value
If you always select it or use it in joins.
By selecting here I mean issuing any queries that return the value of the column.
By searching here I mean issuing any queries whose result depends on the value of the TEXT or VARCHAR column. This includes using it in any JOI...
Best way to read a large file into a byte array in C#?
I have a web server which will read large binary files (several megabytes) into byte arrays. The server could be reading several files at the same time (different page requests), so I am looking for the most optimized way for doing this without taxing the CPU too much. Is the code below good enough?...
Reorder levels of a factor without changing order of values
...ly create the factor.
the rules are simple:
labels are mapped to levels by index value (ie, the value
at levels[2] is given the label, label[2]);
factor levels can be set explicitly by passing them in via the the
levels argument; or
if no value is supplied for the levels argument, the default
val...
How to link to a named anchor in Multimarkdown?
..."></a> where you want to link to and refer to it on the same page by [link text](#abcd).
(This uses name= and not id=, for reasons explained in this answer.)
Remote references can use [link text](http://...#abcd) of course.
This works like a dream, provided you have control over the sour...