大约有 3,285 项符合查询结果（耗时：0.0194秒） [XML]
List of strings to one string
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3 times faster than the StringBuilder? Wow, I figured it would be faster, didn't realize just how much faster. It makes sense though, it's done in unsafe code using pointers, so..... makes sense.
– BFree
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How to store a command in a variable in a shell script?
... say, x="ls $name | wc" (or even x="ls '$name' | wc"), then this code is a fast track to injection or privilege escalation vulnerabilities if that variable can be set by someone with less privileges. (Iterating over all subdirectories in /tmp, for instance? You'd better trust every single user on th...
Convert a list of data frames into one data frame
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since it's 2018 and dplyr is both fast and a solid tool to use, I've changed this to the accepted answer. The years, they fly by!
– JD Long
Jan 12 '19 at 12:03
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Delete fork dependency of a GitHub repository
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Super fast.. they replied me in 1 hours. Thanks
– master_dodo
Sep 19 '17 at 19:46
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Most efficient way to concatenate strings?
...se what ever is most readable. string a = b + c + d; will almost always be faster than doing it with StringBuilder, but the difference is typically irrelevant. Use StringBuilder (or other option of your choice) when repeatedly adding to the same string (eg. building up a report) or when dealing with...
How to Correctly Use Lists in R?
...u me, and dupree",
"He ran away, but not very far, and not very fast")
x <- strsplit(stuff, ",")
xx <- unlist(strsplit(stuff, ","))
In the first case (x : which returns a list), you can tell what the 2nd "part" of the 3rd string was, eg: x[[3]][2]. How could you do the same using ...
How to “comment-out” (add comment) in a batch/cmd?
...instead of REM was preferably used in the days that computers weren't very fast.
REM'ed line are read and then ingnored. ::'ed line are ignored all the way. This could speed up your code in "the old days". Further more after a REM you need a space, after :: you don't.
And as said in the first comme...
What is the difference between Swing and AWT?
...hrunk dramatically over the last several years due to more optimized JVMs, faster machines, and (I presume) optimization of the Swing internals. Today a Swing application can run fast enough to be serviceable or even zippy, and almost indistinguishable from an application using native widgets. Some ...
How to squash all git commits into one?
...to 'squash' manually. Use :%s/pick/squash/g in VIM command line to do this faster.
– eilas
Aug 4 '17 at 14:17
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Merge development branch with master
...h drawback on that approach: the actual merge to master is most probably a fast-forward merge and therefore does not create any commit node. This is no problem with the actual code on the branch, but makes it hard to find out later, who did the actual merge to master and at which time. An explicit -...